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Long-Term Debt (Details Textual) (USD $)
In Thousands, unless otherwise specified |
6 Months Ended | ||||||
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Dec. 31, 2011
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Dec. 31, 2011
Minimum [Member]
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Dec. 31, 2011
Maximum [Member]
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Dec. 31, 2011
Letter Of Credit And Swing Line Loan Sublimit [Member]
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Oct. 21, 2011
Letter Of Credit And Swing Line Loan Sublimit [Member]
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Dec. 31, 2011
Senior Unsecured Revolving Credit Facility [Member]
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Oct. 21, 2011
Senior Unsecured Revolving Credit Facility [Member]
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| Line of Credit Facility [Line Items] | |||||||
| Line of credit facility, maximum borrowing capacity | $ 25,000 | $ 250,000 | $ 250,000 | ||||
| Debt instrument, basis spread on variable rate | 1.25% | 1.50% | |||||
| Line of credit facility, unused capacity, commitment fee percentage | 0.175% | 0.225% | |||||
| Line of credit facility amount outstanding | 6,000 | 146,500 | |||||
| Long-Term Debt (Textual) [Abstract] | |||||||
| Potential increase in loan commitments under credit agreement | $ 150,000 | ||||||
| Maturity date of senior unsecured revolving credit facility | October 21, 2016 | ||||||
| Interest rate description | Any borrowings under the facility will bear interest at LIBOR plus 1.25% to 1.50%, depending on our leverage ratio, which is the ratio of our consolidated total indebtedness to our consolidated earnings before interest, taxes, depreciation and amortization ("EBITDA"). | ||||||
| Weighted-average interest rate on outstanding borrowings | 1.64% | ||||||
| Maximum percentage of leverage ratio in relation to EBITDA | 3.50% | ||||||
| Maximum percentage of senior leverage ratio in relation to EBITDA | 2.75% | ||||||
| Interest coverage ratio minimum | 3.00% | ||||||