Prepaid Expenses and Other Assets (Detail) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013		Dec. 31, 2012
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]
Restricted escrow deposits	$ 101,813		$ 138
Accounts receivable	16,254	[1]	7,174	[1]
Straight line rent receivable	19,010		3,738
Prepaid expenses	43,801		905
Other assets	5,848		29
Prepaid expenses and other assets, net	$ 186,726	[2],[3]	$ 11,984	[2]

[1] Allowance for doubtful accounts was $187,000 as of December 31, 2013. There was no allowance for doubtful accounts as of December 31, 2012.

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

[3] Certain line item captions have been updated since the recasted filing, which applied the carryover basis of accounting to include the effects of the merger with ARCT IV. This line item caption has been updated to prepaid expenses and other assets, net in the accompanying consolidated balance sheets.