Contingencies - Additional Information (Detail) $ in Millions				1 Months Ended
	Sep. 21, 2018 USD ($)	Nov. 01, 2017 USD ($)	Oct. 27, 2017 USD ($)	Apr. 30, 2016 USD ($)	Sep. 30, 2018 Claim
Loss Contingencies [Line Items]
Number of consolidated claims | Claim					3
3TAC, LLC and West Loop South, LLC | Minimum
Loss Contingencies [Line Items]
Compensatory damages sought			$ 22.0
Seth Gerszberg and EGRHC, LLC | Minimum
Loss Contingencies [Line Items]
Compensatory damages sought		$ 100.0
New Rise Brands Holdings, LLC and Sichuan New Rise Import & Export Co. Ltd v. IP Holdings, LLC
Loss Contingencies [Line Items]
Punitive damages				$ 50.0
New Rise Brands Holdings, LLC and Sichuan New Rise Import & Export Co. Ltd v. IP Holdings, LLC | Maximum
Loss Contingencies [Line Items]
Compensatory damages sought	$ 44.2
New Rise Brands Holdings, LLC and Sichuan New Rise Import & Export Co. Ltd v. IP Holdings, LLC | Minimum
Loss Contingencies [Line Items]
Compensatory damages sought	$ 15.6			$ 15.0