Income Taxes - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Income Tax Disclosure [Abstract]
Income tax expense (benefit)	$ 2,919	$ (625)	$ 2,049	$ (1,126)
Statutory rate	35.00%	35.00%	35.00%	35.00%
Reduction to deferred tax asset for share-based awards			$ 32,300
Deferred tax assets, operating loss carryforwards	$ 14,200		14,200
Domestic tax authority | Internal Revenue Service (IRS)
Operating Loss Carryforwards [Line Items]
Operating loss carryforwards generated during the period	$ 25,000		71,600
Domestic tax authority | Internal Revenue Service (IRS) | Prior Two Tax Years
Operating Loss Carryforwards [Line Items]
Operating loss carryforwards generated during the period			49,000
Domestic tax authority | Internal Revenue Service (IRS) | Future Tax Years
Operating Loss Carryforwards [Line Items]
Operating loss carryforwards generated during the period			$ 22,600