SCHEDULE II - VALUATION AND QUALIFYING ACCOUNTS - DEFERRED TAX ASSET VALUATION ALLOWANCE (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at Beginning of Year	$ 104,799
Balance at End of Year	143,971	$ 104,799
Valuation Allowance of Deferred Tax Assets
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at Beginning of Year	104,799	104,520	$ 103,475
Additions Charged to Income	43,361	4,657	2,046
Accounts Receivable Write-offs	(2,871)	(5,745)	(725)
Translation and Other	(1,318)	1,367	(276)
Balance at End of Year	$ 143,971	$ 104,799	$ 104,520