Schedule II - Valuation and Qualifying Accounts Reserves (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Allowance for Doubtful Accounts
Movement in Valuation Allowances and Reserves [Roll Forward]
Balance — Beginning of the year	$ 2,808	$ 2,302	$ 3,393
Provisions	4,640	5,225	2,520
Utilizations	(2,828)	(4,659)	(3,607)
Currency translation adjustment	(81)	(60)	(4)
Balance — End of the year	4,539	2,808	2,302
Valuation Allowance of Deferred Tax Assets
Movement in Valuation Allowances and Reserves [Roll Forward]
Balance — Beginning of the year	11,770	17,189	17,492
Provisions	3,436	928	2,640
Utilizations	(802)	(6,347)	(2,943)
Balance — End of the year	$ 14,404	$ 11,770	$ 17,189