Credit Facilities and Mortgage Notes Payable - Secured Credit Facility - Additional Information (Detail) (USD $) In Millions, unless otherwise specified	1 Months Ended	9 Months Ended	12 Months Ended	1 Months Ended	12 Months Ended			1 Months Ended	12 Months Ended
	Feb. 08, 2012 Interest Rate Cap [Member]	Feb. 08, 2013 Interest Rate Cap [Member]	Dec. 31, 2013 Interest Rate Cap [Member]	Feb. 08, 2013 Interest Rate Swap [Member]	Dec. 31, 2013 Interest Rate Swap [Member]	Dec. 31, 2013 Term Loan [Member]	Dec. 31, 2013 Revolving Credit Facility [Member]	Feb. 08, 2012 Secured Credit Facility [Member]	Dec. 31, 2013 Secured Credit Facility [Member]	Dec. 31, 2011 Secured Credit Facility [Member]	Sep. 28, 2010 Secured Credit Facility [Member]	Feb. 08, 2012 Secured Credit Facility [Member] Term Loan [Member]	Feb. 08, 2012 Secured Credit Facility [Member] Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Credit facility agreement date									Sep. 28, 2010
Credit Facility maximum borrowing capacity						$ 225	$ 350			$ 170	$ 125
Increase in Maximum borrowing facility of line of credit								270
Extended maturity date of line of credit facility									Sep. 28, 2014
Amended and extended credit facility								440				125	315
Possible increase in borrowing capacity due to accordion feature								100
Increased borrowing capacity after considering accordion feature									540
Derivative instruments, notional amount	$ 150			$ 150
Interest rate, description			One month LIBOR		One month LIBOR
Interest rate cap derivative contract cap rate	2.05%
Derivative instruments, maturity date		Feb. 08, 2013			Sep. 28, 2014
Interest rate cap derivative contract effective date	Feb. 08, 2012			Feb. 08, 2013
Interest rate swap derivative contract interest rate				0.5825%