Subsequent Events - Additional Information (Detail) $ in Thousands	Jul. 01, 2015 USD ($)	Mar. 31, 2015 USD ($)
Subsequent Event [Line Items]
Cash paid for acquiring equity interest in the joint venture		$ 1,700
Subsequent Event [Member] | Arizona Texas, 1 Property 7/1/2015 [Member]
Subsequent Event [Line Items]
Equity ownership (as a percent)	10.00%
Cash paid for acquiring equity interest in the joint venture	$ 5,400
Number of stores acquired	1