Income Taxes (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Income taxes disclosures
Loss before income taxes	$ (9,187)	$ (15,005)
Income tax expense (benefit)	(10,282)	$ 528
Federal
Income taxes disclosures
Income tax expense (benefit)	(4,200)
Tax reconciliation disclosures
Current income tax expense (benefit) for net income (losses)	(4,900)
Deferred income tax expense related to amortization on indefinite-lived intangible assets	900
Foreign
Income taxes disclosures
Income tax expense (benefit)	(6,100)
Tax reconciliation disclosures
Increase (decrese) in unrecognized tax benefits	(6,300)
Reversal of tax liability related to uncertain tax position	(4,900)
Deferred tax benefit related to foreign net operating losses	$ (1,400)