| **Earnings Per Share and Stock Repurchase Activity (Details 2) (USD $)In Thousands, except Share data, unless otherwise specified**                     | 3 Months Ended | 9 Months Ended |
|---------------------------------------------------------------------------------------------------------------------------------------------------------|----------------|----------------|
||
| **EPS Reconciliation Disclosure Items [Line Items]**                                                                                                    |           |           |   |   |
| Number of antidilutive options with exercises prices greater than the average market price excluded from the computation of dilutive earnings per share | 508,350        | 60,000         | 509,600 | 60,000 |
| Common stock repurchased and retired pursuant to the Company's stock repurchase program                                                                 | $ 5,341        | $ 9,312        | $ 16,724 | $ 18,204 |
| Number of shares repurchased and retired pursuant to the Company's stock repurchase program                                                             | 110,300        | 222,051        | 337,800 | 427,051 |

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| - Definition
Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.
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| - Definition
Number of shares that have been repurchased and retired during the period.
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| - Definition
Equity impact of the value of stock that has been repurchased and retired during the period. The excess of the purchase price over par value can be charged against retained earnings (once the excess is fully allocated to additional paid in capital).
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