Debt facilities - Additional Information (Details) - USD ($)			3 Months Ended
	May 02, 2022	May 01, 2022	Mar. 31, 2022	Mar. 31, 2021	Dec. 31, 2021	Nov. 25, 2020	Jun. 19, 2019
Debt Instrument [Line Items]
Total outstanding principal amount			$ 36,750,000
Less unamortized debt issuance costs, non-current portion			754,000		$ 838,000
Financing obligation, current portions			7,181,000		8,450,000
Subsequent Event
Debt Instrument [Line Items]
Required deposits	$ 3,300,000	$ 3,300,000
Accrued Expenses and Other Current Liabilities
Debt Instrument [Line Items]
Financing obligation, current portions			3,000,000		3,100,000
Non-current Liabilities
Debt Instrument [Line Items]
Financing obligation, non-current portions			$ 900,000		900,000
Maximum
Debt Instrument [Line Items]
Useful life			5 years
Incremental borrowing rate			16.70%
Maximum | Subsequent Event
Debt Instrument [Line Items]
Funds held in escrow as percent of investments in foreign subsidiaries		125.00%
Minimum
Debt Instrument [Line Items]
Useful life			2 years
Incremental borrowing rate			6.00%
Digital Media Screen
Debt Instrument [Line Items]
Useful life			5 years
Amortization period			5 years
Digital Media Screen | Maximum
Debt Instrument [Line Items]
Period of sale agreement			10 years
Term loan
Debt Instrument [Line Items]
Face amount of debt							$ 44,000,000
Total outstanding principal amount			$ 36,750,000		40,833,000
Repayments of debt			4,100,000	$ 0
Debt issuance costs			100,000		100,000
Secured Debt | Term loan
Debt Instrument [Line Items]
Face amount of debt						$ 49,000,000.0
Interest rate							12.00%
Accrued interest			$ 0		$ 1,300,000
Interest rate, possible increase							3.00%