Income Taxes (Narratives) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Income Taxes
Accrued interest related to uncertain tax position	$ 100	$ 100
Deferred tax asset	33,100	16,200
Deferred tax liability	24,929	12,234
Deferred tax assets, valuation allowance	29,000	13,100
Operating loss carryforward, federal	30,800	11,800
Operating loss carry forward, state	23,500	7,600
Operating loss carry forward, foreign	$ 32,000	46,600
Minimum | Federal
Income Taxes
Operating loss carryforwards, expiration date	Dec. 31, 2032
Minimum | State and Local
Income Taxes
Operating loss carryforwards, expiration date	Dec. 31, 2017
Minimum | Foreign
Income Taxes
Operating loss carryforwards, expiration date	Dec. 31, 2016
Equity Method Investments
Income Taxes
Deferred tax assets, net of valuation allowance	$ 2,300	$ 7,100