Fair Value Measurements - Assets and Liabilities Recorded at Fair Value (Parenthetical) (Detail) - USD ($) $ in Millions |
Jun. 30, 2015 |
Dec. 31, 2014 |
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| Other Accrued Liabilities [Member] | ||
| Derivatives, Fair Value [Line Items] | ||
| Cash flow swaps designated as hedges | $ 5.1 | $ 7.5 |
| Cash flow swaps not designated as hedges | 0.6 | 0.7 |
| Other Long-Term Liabilities [Member] | ||
| Derivatives, Fair Value [Line Items] | ||
| Cash flow swaps designated as hedges | 4.6 | 2.8 |
| Cash flow swaps not designated as hedges | $ 0.6 | $ 0.8 |
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
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- Definition Fair value as of the balance sheet date of all interest rate derivative liabilities designated as cash flow hedging instruments. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Fair value as of the balance sheet date of all derivative liabilities not designated as hedging instruments. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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