Income Taxes (Deferred Tax Assets and Liabilities by Balance Sheet Classification (Details) - USD ($) $ in Thousands		Dec. 31, 2015	Dec. 31, 2014
Deferred Tax Assets and Liabilities by Balance Sheet Classification [Abstract]
Deferred tax assets - current	[1]	$ 0	$ 45,892
Deferred tax liabilities - current	[1]	0	(1,053)
Deferred tax assets- non current		215,196	128,198
Deferred tax liabilities - non current		(3,903)	(8,722)
Total net deferred tax assets		$ 211,293	$ 164,315

[1] During the year ended December 31, 2015, the Company elected to early adopt an accounting standard update on income taxes on a prospective basis. The new authoritative guidance requires deferred tax liabilities and assets along with any related valuation allowance to be classified as noncurrent on the consolidated balance sheet. The December 31, 2014 consolidated balance sheet was not retrospectively adjusted.