Commitments and Contingencies - Additional Information (Detail) $ in Thousands	Sep. 30, 2016 USD ($) store
Commitments And Contingencies [Line Items]
Litigation liability recorded | $	$ 4,800
Commitment to acquire retail space [Member]
Commitments And Contingencies [Line Items]
Number of stores to be acquired	9
Purchase price | $	$ 392,635
Number of stores scheduled to be closed	22
Commitment to acquire retail space [Member] | Joint Venture [Member]
Commitments And Contingencies [Line Items]
Number of stores to be acquired	11
Commitment to acquire retail space [Member] | Construction in progress [Member]
Commitments And Contingencies [Line Items]
Number of stores to be acquired	13
Commitment to acquire real estate with joint venture partners [Member]
Commitments And Contingencies [Line Items]
Number of stores to be acquired	8
Purchase price | $	$ 55,780
Number of stores scheduled to be closed	1
Number of stores expected to be closed	7