Income Taxes - Additional Information (Detail) (USD $)	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Income Taxes [Line Items]
Increase in deferred tax assets valuation allowance	$ 29,800,000
Foreign tax credits carryforwards	19,359,000	1,909,000
Unrecognized tax benefit	13,079,000	4,012,000	8,414,000	10,916,000
Net unrecognized tax benefits that, if recognized, would favorably impact the effective income tax rate	12,200,000	3,700,000
Decrease in unrecognized tax benefits due to the expiration of statutes of limitations and the settlement of various audits	1,600,000
Accrued interest and penalties related to income tax liabilities	1,800,000	1,500,000
Aggregate amount of interest and penalties recorded in the statement of operations	(200,000)	(500,000)	400,000
Undistributed earning of foreign subsidiaries	142,900,000
Minimum
Income Taxes [Line Items]
Effects of retroactive changes in tax law	1,000,000
Maximum
Income Taxes [Line Items]
Effects of retroactive changes in tax law	2,000,000
Acquired During Current Fiscal Year
Income Taxes [Line Items]
Undistributed earning of foreign subsidiaries	54,200,000
Domestic Country | Begin to expire in 2018
Income Taxes [Line Items]
Deferred tax assets operating loss carry forwards	205,800,000
Foreign Entities
Income Taxes [Line Items]
Deferred tax assets operating loss carry forwards	95,000,000
Valuation allowance against the tax benefit associated with NOLs	6,700,000
Foreign tax credits carryforwards	17,800,000
Valuation allowance against tax credit	7,100,000
Foreign Entities | Net Operating Loss Carryforwards with Indefinite Carryforward Period
Income Taxes [Line Items]
Deferred tax assets operating loss carry forwards	83,800,000
Domestic Country
Income Taxes [Line Items]
General business tax credit carryforwards	$ 4,400,000