Goodwill and Intangible Assets - Additional Information (Details) - USD ($)	3 Months Ended		12 Months Ended
	Mar. 31, 2016	Mar. 31, 2015	Dec. 31, 2015
Goodwill And Intangible Assets Disclosure [Abstract]
Intangible assets	$ 0
Goodwill impairment charge			$ 0
Goodwill	108,722,000		108,722,000
Intangible assets, net	9,136,000		$ 9,470,000
Amortization	$ 300,000	$ 100,000