Maturities of Long-Term Debt (Detail) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Long-Term Debt And Capital Lease Obligations [Line Items]
Long term Debt, 2014	$ 6,000
Long term Debt, 2015	11,000
Long term Debt, 2016
Long term Debt, 2017
Long term Debt, 2018
Long term Debt, Thereafter	700,000
Debt instrument, carrying amount	717,000	723,000
Capital Lease Obligations, 2014	14
Capital Lease Obligations, 2015
Capital Lease Obligations, 2016
Capital Lease Obligations, 2017
Capital Lease Obligations, 2018
Capital Lease Obligations, Thereafter
Capital Lease Obligations, Including imputed interest	14
Long term debt and capital lease obligations maturities, 2014	6,014
Long term debt and capital lease obligations maturities, 2015	11,000
Long term debt and capital lease obligations maturities, 2016
Long term debt and capital lease obligations maturities, 2017
Long term debt and capital lease obligations maturities, 2018
Long term debt and capital lease obligations maturities, Thereafter	700,000
Total	$ 717,014

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Amount of minimum lease payments maturing in the next fiscal year following the latest fiscal year for capital leases.

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Amount of minimum lease payments maturing in the fifth fiscal year following the latest fiscal year for capital leases.

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Amount of minimum lease payments maturing in the forth fiscal year following the latest fiscal year for capital leases.

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Amount of minimum lease payments maturing in the second fiscal year following the latest fiscal year for capital leases.

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Amount of minimum lease payments for capital leases net of executory costs, which include amounts paid by the lessee to the lessor for insurance, maintenance and taxes.

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Sum of the carrying values as of the balance sheet date of all debt, including all short-term borrowings, long-term debt, and capital lease obligations.

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Amount of long-term debt before deduction of unamortized discount or premium. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt, with initial maturities beyond one year or the normal operating cycle, if longer.

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Amount of long-term debt and capital lease obligation maturing after the fifth fiscal year following the latest fiscal year.

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Amount of long-term debt and capital lease obligation maturing in the fifth fiscal year following the latest fiscal year.

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