Schedule of Accumulated Other Comprehensive Income (Detail) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Accumulated Other Comprehensive Income Loss [Line Items]
Beginning Balance	$ 716,161	$ 951,437	$ 1,060,497
Changes before reclassifications	(9,535)	(36,707)
Current period other comprehensive income	(9,535)	(36,707)	(40,672)
Ending Balance	494,644	716,161	951,437
Foreign Currency Translation Adjustments
Accumulated Other Comprehensive Income Loss [Line Items]
Beginning Balance	(60,190)	(24,186)
Changes before reclassifications	(7,545)	(36,004)
Current period other comprehensive income	(7,545)	(36,004)
Ending Balance	(67,735)	(60,190)	(24,186)
Unrealized Losses of Available for Sale Securities
Accumulated Other Comprehensive Income Loss [Line Items]
Beginning Balance	(703)
Changes before reclassifications	(1,990)	(703)
Current period other comprehensive income	(1,990)	(703)
Ending Balance	(2,693)	(703)
AOCI Attributable to Parent
Accumulated Other Comprehensive Income Loss [Line Items]
Beginning Balance	(60,893)	(24,186)	16,486
Ending Balance	$ (70,428)	$ (60,893)	$ (24,186)

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Amount after tax, before reclassification adjustments of other comprehensive income (loss).

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Amount after tax and reclassification adjustments of other comprehensive income (loss).

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Amount of stockholders' equity (deficit), net of receivables from officers, directors, owners, and affiliates of the entity, attributable to both the parent and noncontrolling interests. Amount excludes temporary equity. Alternate caption for the concept is permanent equity.

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