Acquisition of CapLease and Cole - CapLease Acquisition Narrative (Detail) (USD $) In Thousands, unless otherwise specified	0 Months Ended
	Nov. 05, 2013		Mar. 31, 2014		Dec. 31, 2013
Business Acquisition [Line Items]
Goodwill			$ 2,298,677	[1]	$ 92,789	[1]
CapLease [Member]
Business Acquisition [Line Items]
Payments to acquire businesses, gross	920,697	[2]
Real estate investments acquired	2,036,640	[2]
Below-market leases	57,058	[2]
Goodwill	$ 92,789	[2]

[1] For discussion on the restatement adjustments, see Note 2 - Restatement of Previously Issued Financial Statements.

[2] As reported in the Amended 10-K.