Goodwill and Other Intangibles - Narratives (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Finite-Lived Intangible Assets, Net
Deferred tax liabilities	$ 76,854	$ 73,542
Amortization of intangible assets	$ 163,800	$ 180,800	$ 174,000
In-place lease
Finite-Lived Intangible Assets, Net
Finite lived intangible assets useful life	21 years 2 months 12 days
Deferred tax liabilities	$ 29,800
Maximum
Finite-Lived Intangible Assets, Net
Finite lived intangible assets useful life	40 years
Maximum | Below-market ground lease
Finite-Lived Intangible Assets, Net
Finite lived intangible assets useful life	99 years
Minimum
Finite-Lived Intangible Assets, Net
Finite lived intangible assets useful life	1 year