Basis of Presentation - Additional Information (Detail) $ in Thousands		1 Months Ended	3 Months Ended		12 Months Ended
	Mar. 14, 2019	Apr. 30, 2020 USD ($)	Mar. 31, 2020 USD ($)	Mar. 31, 2019 USD ($)	Dec. 31, 2019 USD ($)	Dec. 31, 2018 USD ($)
Basis Of Presentation [Line Items]
Accumulated losses			$ (450,600)		$ (429,117)
Net loss			(21,483)	$ 17,945
Reverse stock split	1-for-10 reverse stock split
Stock split, conversion ratio	0.10
Umbro China Limited | Subsequent Event | HK Qiaodan Investment Limited | Share Purchase Agreement
Basis Of Presentation [Line Items]
Sale of equity, value		$ 62,500
Novel Corona Virus Adverse Impact
Basis Of Presentation [Line Items]
Accumulated losses			$ (450,600)
Net loss					$ 101,900	$ 89,700