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Change in Rate Based on Leverage Ratio (Parenthetical) (Detail)
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Jun. 30, 2013
Maximum
Less than 3.25 to 1.00
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Jun. 30, 2013
Maximum
Greater than or equal to 3.25 to 1.00 but less than 4.50 to 1.00
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Jun. 30, 2013
Maximum
Greater than or equal to 4.50 to 1.00 but less than 6.00 to 1.00
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Mar. 31, 2013
Maximum
Less than 3.00 to 1.00
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Mar. 31, 2013
Maximum
Greater than or equal to 3.00 to 1.00 but less than 4.00 to 1.00
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Mar. 31, 2013
Maximum
Greater than or equal to 4.00 to 1.00 but less than 5.00 to 1.00
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Mar. 31, 2013
Maximum
Greater than or equal to 5.00 to 1.00 but less than 6.00 to 1.00
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Jun. 30, 2013
Minimum
Greater than or equal to 3.25 to 1.00 but less than 4.50 to 1.00
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Jun. 30, 2013
Minimum
Greater than or equal to 4.50 to 1.00 but less than 6.00 to 1.00
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Jun. 30, 2013
Minimum
Greater than or equal to 6.00 to 1.00
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Mar. 31, 2013
Minimum
Greater than or equal to 3.00 to 1.00 but less than 4.00 to 1.00
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Mar. 31, 2013
Minimum
Greater than or equal to 4.00 to 1.00 but less than 5.00 to 1.00
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Mar. 31, 2013
Minimum
Greater than or equal to 5.00 to 1.00 but less than 6.00 to 1.00
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Mar. 31, 2013
Minimum
Greater than or equal to 6.00 to 1.00
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|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Debt Instrument [Line Items] | ||||||||||||||
| Leverage ratio | 325.00% | 450.00% | 600.00% | 300.00% | 400.00% | 500.00% | 600.00% | 325.00% | 450.00% | 600.00% | 300.00% | 400.00% | 500.00% | 600.00% |