Commitments and Contingencies - Future Minimum Payments Under Non-Cancelable Operating Leases (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2015 USD ($)
Loss Contingencies [Line Items]
Lease expiration date	Aug. 31, 2029
Operating Leases, Future Minimum Payments Due, Fiscal Year Maturity [Abstract]
2016	$ 159,693
2017	168,118
2018	195,670
2019	200,250
2020	194,968
Thereafter	1,114,915
Total minimum lease payments	2,033,614
Operating Leases, Future Minimum Payments Due, Future Minimum Sublease Rentals, Fiscal Year Maturity [Abstract]
2016	(18,222)
2017	(18,031)
2018	(18,208)
2019	(18,726)
2020	(19,241)
Thereafter	(121,185)
Total minimum lease payments	(213,613)
Operating Leases, Future Minimum Payments Due, Operating Leases and Future Minimum Sublease Rental, Fiscal Year Maturity [Abstract]
2016	141,471
2017	150,087
2018	177,462
2019	181,524
2020	175,727
Thereafter	993,730
Total minimum lease payments	$ 1,820,001
Sunnyvale, California [Member]
Operating Leases, Future Minimum Payments Due, Operating Leases and Future Minimum Sublease Rental, Fiscal Year Maturity [Abstract]
Sublease term	11 years