Goodwill and Intangible Assets (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill	$ 630,248	$ 630,248
Indefinite-Lived Intangible Assets (Excluding Goodwill)	344,075	344,075
Finite-Lived Intangible Assets [Line Items]
Accumulated Amortization	(14,676)	(12,214)
Net Carrying Value	12,353
Intangible assets, gross	371,104	371,572
Intangible assets, net of accumulated amortization	356,428	359,358
Amortization of Intangible Assets	2,623	$ 2,658	$ 14,393
Finite-Lived Intangible Assets, Amortization Expense, Maturity Schedule [Abstract]
2016	2,606
2017	2,485
2018	2,436
2019	2,430
2020	1,042
2021 and thereafter	$ 1,354
Licensing Agreements [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Remaining Amortization Period	4 years 6 months	5 years 6 months
Gross Carrying Value	$ 24,461	$ 24,461
Accumulated Amortization	(13,664)	(11,237)
Net Carrying Value	$ 10,797	$ 13,224
Other Intangible Assets [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Remaining Amortization Period	29 years 9 months	31 years 1 month
Gross Carrying Value	$ 2,568	$ 3,036
Accumulated Amortization	(1,012)	(977)
Net Carrying Value	$ 1,556	$ 2,059