Income Taxes - Additional Information (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Income Taxes [Line Items]
Effective income tax rate from discontinued operations	0.00%	(0.70%)	(10.00%)
Discontinued Operation, Gain (Loss) on Disposal of Discontinued Operation, Tax Benefit		$ 21,600	$ 8,600
Income tax benefits attributable to employee stock option transactions	$ 4,800	4,200	1,200
Net operating loss carryforwards	107,813	111,288
Deferred Tax Assets, Operating Loss Carryforwards	16,000
Valuation allowance, amount	102,590	100,205
Increase in valuation allowance	2,400
Deferred tax liability	18,373	33,597
Unremitted Foreign Earnings	108,100	168,100
Approximate amount of deferred tax liability that would be recognized if foreign operations earnings are not indefinitely reinvested	207,300
Deferred income taxes	22,800
Unrecognized tax benefit	30,886	28,959	23,807	$ 22,680
Unrecognized tax benefits, interest and penalties recognized and reversal	(2,900)	5,100	$ (200)
Liabilities for uncertain tax positions interests and penalties	13,200	$ 16,100
Federal State and Foreign [Member]
Income Taxes [Line Items]
Net operating loss carryforwards	$ 281,600