Income Taxes (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016	Mar. 31, 2017	Dec. 31, 2016
Income Tax Disclosure [Abstract]
Deferred income tax liability	$ 49,726		$ 49,726			$ 48,720
Deferred Tax Assets, Operating Loss Carryforwards, Subject to Expiration	13,400		13,400			13,400
Deferred Tax Liabilities, Goodwill and Intangible Assets					$ 36,300
Unrecognized Tax Benefits	1,300		1,300			1,300
Income Tax Examination, Penalties and Interest Expense	200	$ 0	400	$ 0
Income Tax Examination, Penalties and Interest Accrued	$ 800		$ 800			$ 400