Fair Value Disclosures (Detail) - Assets And Liabilities Measured At Fair Value On Recurring Basis (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Assets:
Assets measured at fair value on a recurring basis	$ 35,108us-gaap_AssetsFairValueDisclosure	$ 32,671us-gaap_AssetsFairValueDisclosure
Liabilities:
Liabilities measured at fair value on a recurring basis	42,220us-gaap_LiabilitiesFairValueDisclosure	43,091us-gaap_LiabilitiesFairValueDisclosure
Level 1
Assets:
Deferred compensation plan assets	7,650	7,775
Assets measured at fair value on a recurring basis	7,650	7,775
Level 2
Assets:
Deferred compensation plan assets	27,000	24,780
Assets measured at fair value on a recurring basis	27,458	24,896
Liabilities:
Deferred compensation liability	39,100	36,410
Liabilities measured at fair value on a recurring basis	42,220	43,091
Level 2 \| Foreign currency forward contracts
Assets:
Derivative asset	458	116
Liabilities:
Derivative liability	220	176
Level 2 \| Interest rate swap contracts
Liabilities:
Derivative liability	$ 2,900	$ 6,505

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- Definition

Fair value portion of probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

+ References

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Aggregate carrying value as of the balance sheet date of the liabilities for all deferred compensation arrangements payable beyond one year (or the operating cycle, if longer).

+ References

No definition available.

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Carrying amount as of the balance sheet date of assets held under deferred compensation agreements.

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- Definition

Fair value, after the effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes assets not subject to a master netting arrangement and not elected to be offset.

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Fair value, after the effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes liabilities not subject to a master netting arrangement and not elected to be offset.

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- Definition

Fair value of financial and nonfinancial obligations.

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