| **Guarantor Subsidiaries And Non-Guarantor Subsidiaries (Supplemental Condensed Consolidating Statement Of Cash Flows) (Details) (USD $)In Thousands, unless otherwise specified** | 3 Months Ended |
|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|----------------|
||
| Net cash (used in) provided by operating activities                                                                                                                                | $ 34,577       | $ 38,335 |
| Capital expenditures                                                                                                                                                               | (35,907)       | (51,003) |
| Other investing activities, net                                                                                                                                                    | 255            | (136) |
| Net cash used in investing activities                                                                                                                                              | (35,652)       | (51,139) |
| Repurchases of common stock                                                                                                                                                        | 0              | (7,869) |
| Dividends paid                                                                                                                                                                     | (6,729)        | (5,429) |
| Other financing activities, net                                                                                                                                                    | 5,704          | 697 |
| Advances                                                                                                                                                                           | 0              | 0 |
| Net cash provided by (used in) financing activities                                                                                                                                | (1,025)        | (12,601) |
| Effect of exchange rate changes on cash and cash equivalents                                                                                                                       | 32             | 0 |
| Net decrease in cash and cash equivalents                                                                                                                                          | (2,068)        | (25,405) |
| Beginning of period                                                                                                                                                                | 46,053         | 70,143 |
| End of period                                                                                                                                                                      | 43,985         | 44,738 |
| Parent Company [Member]                                                                                                                                                            |           |   |
| Net cash (used in) provided by operating activities                                                                                                                                | (38,785)       | (34,685) |
| Capital expenditures                                                                                                                                                               | 0              | 0 |
| Other investing activities, net                                                                                                                                                    | 0              | 0 |
| Net cash used in investing activities                                                                                                                                              | 0              | 0 |
| Repurchases of common stock                                                                                                                                                        |           | (7,869) |
| Dividends paid                                                                                                                                                                     | (6,729)        | (5,429) |
| Other financing activities, net                                                                                                                                                    | 3,628          | 994 |
| Advances                                                                                                                                                                           | 41,886         | 46,989 |
| Net cash provided by (used in) financing activities                                                                                                                                | 38,785         | 34,685 |
| Effect of exchange rate changes on cash and cash equivalents                                                                                                                       | 0              |   |
| Net decrease in cash and cash equivalents                                                                                                                                          | 0              | 0 |
| Beginning of period                                                                                                                                                                | 0              | 0 |
| End of period                                                                                                                                                                      | 0              | 0 |
| 100% Owned Guarantor Subsidiaries [Member]                                                                                                                                         |           |   |
| Net cash (used in) provided by operating activities                                                                                                                                | 73,658         | 73,005 |
| Capital expenditures                                                                                                                                                               | (35,654)       | (50,893) |
| Other investing activities, net                                                                                                                                                    | 255            | (136) |
| Net cash used in investing activities                                                                                                                                              | (35,399)       | (51,029) |
| Repurchases of common stock                                                                                                                                                        |           | 0 |
| Dividends paid                                                                                                                                                                     | 0              | 0 |
| Other financing activities, net                                                                                                                                                    | 2,170          | (292) |
| Advances                                                                                                                                                                           | (42,030)       | (46,989) |
| Net cash provided by (used in) financing activities                                                                                                                                | (39,860)       | (47,281) |
| Effect of exchange rate changes on cash and cash equivalents                                                                                                                       | 0              |   |
| Net decrease in cash and cash equivalents                                                                                                                                          | (1,601)        | (25,305) |
| Beginning of period                                                                                                                                                                | 38,380         | 63,365 |
| End of period                                                                                                                                                                      | 36,779         | 38,060 |
| Other Subsidiaries [Member]                                                                                                                                                        |           |   |
| Net cash (used in) provided by operating activities                                                                                                                                | (296)          | 15 |
| Capital expenditures                                                                                                                                                               | (253)          | (110) |
| Other investing activities, net                                                                                                                                                    | 0              | 0 |
| Net cash used in investing activities                                                                                                                                              | (253)          | (110) |
| Repurchases of common stock                                                                                                                                                        |           | 0 |
| Dividends paid                                                                                                                                                                     | 0              | 0 |
| Other financing activities, net                                                                                                                                                    | (94)           | (5) |
| Advances                                                                                                                                                                           | 144            | 0 |
| Net cash provided by (used in) financing activities                                                                                                                                | 50             | (5) |
| Effect of exchange rate changes on cash and cash equivalents                                                                                                                       | 32             |   |
| Net decrease in cash and cash equivalents                                                                                                                                          | (467)          | (100) |
| Beginning of period                                                                                                                                                                | 7,673          | 6,778 |
| End of period                                                                                                                                                                      | $ 7,206        | $ 6,678 |

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|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation.
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|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Amount of increase (decrease) in cash and cash equivalents. Cash and cash equivalents are the amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation.
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|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
The effect of exchange rate changes on cash balances held in foreign currencies.
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|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
The net cash inflow or outflow from financing activity for the period.
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|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
The net cash inflow or outflow from investing activity.
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|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
The net cash from (used in) all of the entity's operating activities, including those of discontinued operations, of the reporting entity. Operating activities generally involve producing and delivering goods and providing services. Operating activity cash flows include transactions, adjustments, and changes in value that are not defined as investing or financing activities. While for technical reasons this element has no balance attribute, the default assumption is a debit balance consistent with its label.
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|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
The net cash outflow or inflow from other investing activities. This element is used when there is not a more specific and appropriate element in the taxonomy.
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|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
The cash outflow to reacquire common stock during the period.
+ References
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|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Cash outflow in the form of capital distributions and dividends to common shareholders, preferred shareholders and noncontrolling interests.
+ References
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|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
The cash outflow for purchases of and capital improvements on property, plant and equipment (capital expenditures), software, and other intangible assets.
+ References
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|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
The cash inflow from the collection of money previously advanced to an entity that is related to it but not strictly controlled.
+ References
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|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
The net cash inflow or outflow from other financing activities. This element is used when there is not a more specific and appropriate element in the taxonomy.
+ References
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