Initial Public Offering and Formation Transactions - Additional Information (Detail) (Operating Partnership, USD $) In Millions, unless otherwise specified	0 Months Ended	1 Months Ended
	Jul. 16, 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	$ 15.0	$ 40.0
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%