Goodwill and Intangible Assets Goodwill and Intangible Assets - Narrative (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016	Dec. 31, 2016	Dec. 31, 2015
Goodwill and Intangible Assets Disclosure [Abstract]
Amortization of Intangible Assets	$ 10,167,000	$ 3,066,000	$ 11,522,000	$ 3,352,000
Goodwill	$ 59,679,000		$ 59,679,000		$ 14,254,000	$ 3,413,000