Goodwill and Intangible Assets, Net (Details 4) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Changes in the carrying amount of goodwill
Balance at the beginning of the period			$ 123,950
Foreign exchange	$ 1,043
Balance at the end of the period	124,993	$ 124,827	124,993	$ 124,827
Changes in the carrying amount of intangible assets
Balance at the beginning of the period			27,675
Amortization	(1,500)	(1,500)	(3,013)	(3,100)
Foreign exchange	250
Balance at the end of the period	$ 24,912	$ 30,743	$ 24,912	$ 30,743