Significant Contracts and Concentration of Risk (Details)	12 Months Ended
	Feb. 02, 2019	Feb. 03, 2018
Revenues
Collaborative Arrangements And Noncollaborative Arrangement Transactions [Line Items]
Concentration risk (as a percent)	20.00%	16.00%
Target | Accounts receivable
Collaborative Arrangements And Noncollaborative Arrangement Transactions [Line Items]
Concentration risk (as a percent)	0.00%	9.00%
Target | Revenue
Collaborative Arrangements And Noncollaborative Arrangement Transactions [Line Items]
Concentration risk (as a percent)	0.00%	6.00%
Kohl’s | Accounts receivable
Collaborative Arrangements And Noncollaborative Arrangement Transactions [Line Items]
Concentration risk (as a percent)	0.00%	12.00%
Kohl’s | Revenue
Collaborative Arrangements And Noncollaborative Arrangement Transactions [Line Items]
Concentration risk (as a percent)	0.00%	16.00%
Two Other Licensees | Accounts receivable
Collaborative Arrangements And Noncollaborative Arrangement Transactions [Line Items]
Concentration risk (as a percent)	29.00%
Two Other Licensees | Revenues
Collaborative Arrangements And Noncollaborative Arrangement Transactions [Line Items]
Concentration risk (as a percent)	10.00%