Contingencies - Additional Information (Detail)		1 Months Ended
	Nov. 03, 2017 USD ($)	Aug. 31, 2017 USD ($)	Apr. 30, 2016 USD ($)	Jul. 31, 2013 USD ($)	Sep. 30, 2017 Claim
Loss Contingencies [Line Items]
Number of consolidated claims | Claim					3
Signature Apparel Group LLC v. ROC Fashions, LLC | Signature's principals
Loss Contingencies [Line Items]
Disgorgement of consulting fees		$ 2,050,000
Signature Apparel Group LLC v. ROC Fashions, LLC | Maximum | Subsequent Event
Loss Contingencies [Line Items]
Compensatory damages sought	$ 70,000,000
Signature Apparel Group LLC v. ROC Fashions, LLC | Minimum
Loss Contingencies [Line Items]
Compensatory damages sought				$ 8,800,000
New Rise Brands Holdings, LLC and Sichuan New Rise Import & Export Co. Ltd v. IP Holdings, LLC
Loss Contingencies [Line Items]
Compensatory damages sought			$ 15,000,000
Punitive damages			$ 50,000,000