Commitments and Contingencies (Details) $ in Thousands	6 Months Ended
	Jun. 30, 2016 USD ($)
Other Commitments [Line Items]
Expiration date of longest lease	Aug. 31, 2029
Operating Leases, Future Minimum Payments Due, Fiscal Year Maturity [Abstract]
Remainder of 2016	$ 81,978	[1]
2017	179,552	[1]
2018	209,121	[1]
2019	208,261	[1]
2020	199,642	[1]
Thereafter	1,127,652	[1]
Total minimum lease payments	2,006,206	[1]
Operating Leases, Future Minimum Payments Due, Future Minimum Sublease Rentals, Fiscal Year Maturity [Abstract]
Remainder of 2016	(9,053)	[2]
2017	(18,036)	[2]
2018	(18,209)	[2]
2019	(18,726)	[2]
2020	(19,241)	[2]
Thereafter	(121,185)	[2]
Total minimum sublease income	(204,450)	[2]
Operating Leases, Future Minimum Payments Due, Operating Leases and Future Minimum Sublease Rental, Fiscal Year Maturity [Abstract]
Remainder of 2016	72,925
2017	161,516
2018	190,912
2019	189,535
2020	180,401
Thereafter	1,006,467
Total minimum lease payments	$ 1,801,756
California [Member]
Operating Leases, Future Minimum Payments Due, Operating Leases and Future Minimum Sublease Rental, Fiscal Year Maturity [Abstract]
Sublease term	10 years

[1] , the Company executed an agreement with Google Inc. ("Google"), a subsidiary of Alphabet Inc., to assume Google's leased properties in Sunnyvale, California, in exchange for the Company's leased properties in Mountain View, California.

[2] Primarily represents sublease income for several buildings the Company leases in Sunnyvale, California, to be recognized over the next 10 years.