INCOME TAXES - Deferred Tax Assets and Deferred Tax Liabilities (Detail) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Deferred tax assets:
Accrued compensation and benefits	$ 10,463	$ 9,810
Receivables	3,096	2,381
Inventory	422	873
Stock options	1,101	738
Foreign currency translation and other equity adjustments	0	2,945
Other accrued liabilities	2,058	3,066
Tax credit carry forward	1,920	2,588
Net operating loss carry forwards	48,732	35,185
Other	5,925	2,066
Deferred tax assets	73,717	59,652
Less: Valuation allowance	(10,549)	(6,479)
Deferred tax assets, net	63,168	53,173
Deferred tax liabilities:
Property, plant and equipment	(22,429)	(20,918)
Goodwill and intangible costs	(23,210)	(27,762)
Unremitted earnings of foreign subsidiaries	(5,375)	(13,795)
Convertible debt	(7,055)	(3,622)
Other	(3,553)	(677)
Deferred tax liabilities	(61,622)	(66,774)
Net deferred tax asset (liability)	$ 1,546
Net deferred tax asset (liability)		$ (13,601)