Initial Public Offering and Formation Transactions - Additional Information (Detail) (Operating Partnership, USD $) In Millions, unless otherwise specified	1 Months Ended
	Jun. 30, 2013	May 13, 2013
Operations And Organization [Line Items]
Senior secured revolving credit facility, maximum borrowing capacity		$ 100.0
Senior secured revolving credit facility, maximum borrowing capacity with option		250.0
Revolving credit facility, term		3 years
Revolving credit facility, initial maturity date		May 13, 2016
Revolving credit facility, potential extended maturity date		May 12, 2017
Revolving credit facility, borrowed amount		40.0
Revolving credit facility, repayment of debt	$ 15.0
Minimum
Operations And Organization [Line Items]
Revolving credit facility, interest rate description		LIBOR plus 1.60%
Revolving credit facility, percentage added to LIBOR		1.60%
Maximum
Operations And Organization [Line Items]
Revolving credit facility, interest rate description		LIBOR plus 2.20%
Revolving credit facility, percentage added to LIBOR		2.20%