Finance Receivables (Narratives) (Details) (USD $)	3 Months Ended		6 Months Ended						6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013	Dec. 31, 2013	Jun. 30, 2014 CPA: 16 - Global	Mar. 31, 2014 CPA: 16 - Global	Jan. 31, 2014 CPA: 16 - Global lease	Jun. 30, 2014 CPA: 16 - Global B Note	Jun. 30, 2014 Direct financing lease	Jun. 30, 2014 Measurement period adjustment CPA: 16 - Global
Finance Receivables
Interest income from direct financing lease	$ 21,400,000	$ 9,400,000	$ 38,600,000	$ 18,800,000
Number of DFL acquired from Merger								98
Reclassification to real estate owned										7,000,000
Net investments in direct financing leases	880,000,000		880,000,000		363,420,000	538,225,000	538,607,000	538,225,000			(382,000)
Real Estate Investment Property, Net	4,365,388,000		4,365,388,000		2,353,391,000	1,970,175,000	1,969,274,000	1,970,175,000			901,000
Accounts receivable billed under direct financing lease	2,300,000		2,300,000		100,000
Notes receivable	$ 21,003,000		$ 21,003,000		$ 0	$ 11,100,000			$ 9,900,000
Interest rate on note									6.30%
Notes receivable maturity date									Feb. 11, 2015
Installment Period for Deferred Acquisition Fee Receivable			three years
Financing receivable credit quality additional information			We generally seek investments in facilities that we believe are critical to a tenant’s business and that we believe have a low risk of tenant default. At both June 30, 2014 and December 31, 2013, none of the balances of our finance receivables were past due and we had not established any allowances for credit losses.
Financing receivable credit quality range of dates ratings updated			The credit quality evaluation of our finance receivables was last updated in the second quarter of 2014.