Aggregate Annual Maturities of Debt (Detail) (USD $)	12 Months Ended
Dec. 31, 2013
Debt Instrument [Line Items]
2014	$ 126,159,000
2015	46,672,000
2016	76,876,000
2017	76,876,000
2018	76,876,000
Thereafter	1,282,439,000
Long-term Debt, Total	1,685,898,000
Scenario, Forecast [Member]
Debt Instrument [Line Items]
Decrease in term loan borrowings due to refinancing	$ 17,900,000

Net increase or decrease in the carrying amount of the debt instrument for the period for reasons other than accrued but unpaid interest, additional borrowings, forgiveness and repayments.

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Carrying amount of long-term debt, net of unamortized discount or premium, including current and noncurrent amounts. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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