Income Taxes - Reconciliation of Unrecognized Tax Benefits (Detail) (USD $) In Thousands, unless otherwise specified	12 Months Ended
Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Income Tax Expense Benefit [Line Items]
Balance at January 1	$ 170,994	$ 151,898	$ 163,859
Tax positions related to current year:
Additions	29,887	19,482	10,874
Tax positions related to prior years:
Additions	2,000	29,312	1,541
Reductions		(20,156)	(800)
Lapses in statute of limitations	(9,387)	(9,580)	(14,174)
Payments			(9,780)
Foreign exchange loss	400	38	378
Balance at December 31	$ 193,894	$ 170,994	$ 151,898

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- Definition

Unrecognized tax benefits payments.

+ References

No definition available.

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- Definition

The gross amount of unrecognized tax benefits pertaining to uncertain tax positions taken in tax returns as of the balance sheet date.

+ References

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-Publisher FASB

-Name Accounting Standards Codification

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The gross amount of decreases in unrecognized tax benefits resulting from tax positions taken in prior period tax returns, excluding amounts pertaining to examined tax returns.

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The gross amount of increases in unrecognized tax benefits resulting from tax positions that have been or will be taken in the tax return for the current period, excluding amounts pertaining to examined tax returns.

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Gross amount of increases in unrecognized tax benefits resulting from foreign currency translation.

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The gross amount of increases in unrecognized tax benefits resulting from tax positions taken in prior period tax returns, excluding amounts pertaining to examined tax returns.

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The gross amount of decreases in unrecognized tax benefits resulting from lapses of the applicable statutes of limitations.

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