Significant Components of Other Current Liabilities (Detail) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014
Other Liabilities [Line Items]
Deferred revenues	$ 43,317us-gaap_DeferredRevenueCurrent	$ 41,773us-gaap_DeferredRevenueCurrent
Accrued income taxes	34,648us-gaap_AccruedIncomeTaxes
Accrued expenses	25,973us-gaap_AccruedLiabilitiesCurrent	23,617us-gaap_AccruedLiabilitiesCurrent
Dividends payable	19,094us-gaap_DividendsPayableCurrent	19,006us-gaap_DividendsPayableCurrent
Other	87,469us-gaap_OtherAccruedLiabilitiesCurrent	70,409us-gaap_OtherAccruedLiabilitiesCurrent
Total	$ 210,501us-gaap_OtherLiabilitiesCurrent	$ 154,805us-gaap_OtherLiabilitiesCurrent

Carrying amount as of the balance sheet date of the unpaid sum of the known and estimated amounts payable to satisfy all domestic and foreign income tax obligations due. This amount is the total of current and noncurrent accrued income taxes.

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Carrying value as of the balance sheet date of obligations incurred through that date and payable arising from transactions not otherwise specified in the taxonomy. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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- Definition

Aggregate carrying amount of current liabilities (due within one year or within the normal operating cycle if longer) not separately disclosed in the balance sheet. Includes costs that are statutory in nature, are incurred on contractual obligations, or accumulate over time and for which invoices have not yet been received or will not be rendered and of liabilities not separately disclosed.

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