Goodwill and Identifiable Intangible Assets, Net (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Changes in the carrying amount of goodwill
Balance at the beginning of period	$ 140,341	$ 114,588
Additions	3,533	26,480
Impairment adjustment		(727)
Balance at the end of period	$ 143,874	$ 140,341