Income Taxes - Additional Information (Detail) (USD $)	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Income Tax [Line Items]
Undistributed earnings of foreign subsidiaries	$ 382,000,000
Capital loss carryforward	42,000,000
Capital loss carryforward, expiration year	2013
Unrecognized tax benefits including interest and penalties	58,020,000	59,532,000
Unrecognized tax benefits that would impact effective tax rate	17,615,000	18,966,000
Interest and penalties paid by the Company	493,000	759,000	272,000
Accrued interest and penalties	$ 12,565,000	$ 12,687,000