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