Goodwill and Other Intangibles (Narratives) (Details) (USD $)	12 Months Ended						0 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2013 Below-market ground lease	Dec. 31, 2013 Maximum	Dec. 31, 2013 Minimum	Jan. 31, 2014 CPA: 16 Merger Subsequent Event
Finite-Lived Intangible Assets, Net
Finite lived intangible assets useful life				134 years	40 years	1 year
Amortization of intangible assets	$ 86,100,000	$ 24,900,000	$ 4,700,000
Goodwill, acquired		$ 268,683,000	$ 0				$ 392,459,000