| **Long-Term Debt (Narratives) (Details) (USD $)**    | 6 Months Ended                                                                                                                                                                                                                                                                                                                                                                                                                                              |
|------------------------------------------------------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
||
| **Debt Instrument [Line Items]**                     |                                                                                                                                                                                                                                                                                                                                                                                                                                                        |   |
| Debt Instrument Maturity                             | Apr. 30,				 2018                                                                                                                                                                                                                                                                                                                                                                                                                                           |   |
| Senior Credit Facility Covenant Description          | Borrowings under the Senior Credit Facility are subject to certain financial covenants and restrictions on indebtedness.  Our Senior Credit Facility Total Leverage Ratio (as defined) may not exceed 6.5 to one through June 30, 2014 and shall not exceed 5.95 to one any time thereafter; the Senior Leverage Ratio (as defined) may not exceed 3.00 to one; and our Interest Coverage Ratio (as defined) must not be less than 2.50 to one at any time. |   |
| Write Off Of Deferred Debt Issuance Cost             | $ 100,000                                                                                                                                                                                                                                                                                                                                                                                                                                                   |   |
| Deferred Loan Fees, Net                              | 700,000                                                                                                                                                                                                                                                                                                                                                                                                                                                     |   |
| Debt Related Commitment                              | 400,000                                                                                                                                                                                                                                                                                                                                                                                                                                                     |   |
| Payment of debt issuance costs                       | 2,990,000                                                                                                                                                                                                                                                                                                                                                                                                                                                   | 0 |
| Senior Credit Facility Term Loan Amount              | 100,000,000                                                                                                                                                                                                                                                                                                                                                                                                                                                 |   |
| Senior Credit Facility Revolver Amount               | 10,000,000                                                                                                                                                                                                                                                                                                                                                                                                                                                  |   |
| Letters Of Credit Outstanding                        | 500,000                                                                                                                                                                                                                                                                                                                                                                                                                                                     |   |
| Line Of Credit Facility Remaining Borrowing Capacity | 279,500,000                                                                                                                                                                                                                                                                                                                                                                                                                                                 |   |
| Senior Credit Facility Term Loan [Member]            |                                                                                                                                                                                                                                                                                                                                                                                                                                                        |   |
| **Debt Instrument [Line Items]**                     |                                                                                                                                                                                                                                                                                                                                                                                                                                                        |   |
| Senior Credit Facility Capacity                      | 240,000,000                                                                                                                                                                                                                                                                                                                                                                                                                                                 |   |
| Senior Credit Facility Revolver [Member]             |                                                                                                                                                                                                                                                                                                                                                                                                                                                        |   |
| **Debt Instrument [Line Items]**                     |                                                                                                                                                                                                                                                                                                                                                                                                                                                        |   |
| Senior Credit Facility Capacity                      | $ 150,000,000                                                                                                                                                                                                                                                                                                                                                                                                                                               |   |

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| - Definition
Including current and noncurrent portions, aggregate carrying amount of long-term borrowings as of the balance sheet date before deducting unamortized discount or premiums (if any). May include notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt, which had initial maturities beyond one year or beyond the normal operating cycle, if longer.
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| - Definition
Description of minimum financial levels (for example, tangible net worth and working capital) and achievement of certain financial ratios (for example, working capital ratio and debt service coverage ratio), and adherence to certain clauses which generally require or restrict certain actions (for example, entering into a debt arrangement with equal or greater seniority, and selling or discontinuing a certain business segment or material subsidiary) to be in compliance with the covenant clauses of the debt agreement. May also include a discussion of the adverse consequences that would result if the entity violates or fails to satisfy the covenants.
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|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Date when the debt instrument is scheduled to be fully repaid, in CCYY-MM-DD format.
+ References
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|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Represents the charge against earnings during the period for commitment fees and debt issuance expenses.
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|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
For an unclassified balance sheet, the carrying amount (net of accumulated amortization) as of the balance sheet date of capitalized costs associated with the issuance of debt instruments (for example, legal, accounting, underwriting, printing, and registration costs) that will be charged against earnings over the life of the debt instruments to which such costs pertain.
+ References
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| X                                                                                                                                                                                                                                                                                                                                        |
|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
The total amount of the contingent obligation under letters of credit outstanding as of the reporting date.
+ References
No definition available.
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| X                                                                                                                                                                                                                                                                                                                                                                                                                                         |
|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Amount borrowed under the credit facility as of the balance sheet date.
+ References
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|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.
+ References
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|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding).
+ References
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|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
The cash outflow paid to third parties in connection with debt origination, which will be amortized over the remaining maturity period of the associated long-term debt.
+ References
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|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Write-off of amounts previously capitalized as debt issuance cost in an extinguishment of debt.
+ References
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