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Commitments and contingencies - Narrative (Details) $ in Thousands				1 Months Ended		3 Months Ended		9 Months Ended		12 Months Ended
	Dec. 30, 2021 USD ($) anniversary	Jun. 25, 2021 USD ($)	Apr. 12, 2021 USD ($)	Dec. 31, 2021 USD ($)	Dec. 31, 2020 USD ($) ft² renewal_option	Sep. 30, 2022 USD ($) lease shares	Sep. 30, 2021 USD ($)	Sep. 30, 2022 USD ($) lease building shares	Sep. 30, 2021 USD ($)	Dec. 31, 2020 USD ($) renewal_option	Sep. 24, 2021 studio	Nov. 24, 2020 USD ($) studio	Oct. 15, 2020
Loss Contingencies [Line Items]
Litigation accrual				$ 4,200		$ 7,300		$ 7,300
Number of office buildings being leased \| building								16
Rent expense for operating leases						1,400	$ 500	$ 4,200	$ 1,100
Number of square feet for lease \| ft²					44,171
Initial term					8 years					8 years
Number of renewal options \| renewal_option					1					1
Term of renewal option					5 years					5 years
Initial term commencement period upon delivery of space					180 days
Rent payments outstanding										$ 13,900
Operating lease					$ 1,600	4,086		4,086		1,600
Tenant improvement allowance					$ 3,800					$ 3,800
Tenant improvements				3,800
Reductions to rent expense						$ 100		$ 400
Number of year lease term						9 years 4 months 24 days		9 years 4 months 24 days
Franchisee studios \| lease						5		5
Common shares vested (in shares) \| shares						969,990		1,884,682
Prepaid expenses				12,706		$ 9,620		$ 9,620
Accrued payroll and benefits				1,677		5,430		5,430
Restricted Stock Units (RSUs)
Loss Contingencies [Line Items]
Company’s restricted stock awards	$ 100
Period of service	12 months
Number of anniversaries \| anniversary	4
Vesting period	1 year
Percentage of vesting of award under share-based payment arrangement	100.00%
Other Noncurrent Liabilities
Loss Contingencies [Line Items]
Accrued payroll and benefits						100		100
Db Ventures
Loss Contingencies [Line Items]
Other commitment				$ 500
Contractual obligation expenses						800	$ 500	$ 1,700	$ 1,000
Db Ventures \| CLF High Street Limited
Loss Contingencies [Line Items]
Ownership interest (percent)				75.00%
2020 Promotional Agreements \| Db Ventures \| Company Determined As Publicly Traded
Loss Contingencies [Line Items]
Percentage of issued and outstanding common stock payable												1.00%
Contractual Obligation												$ 5,000
Contractual Term								5 years
Number of studios \| studio												2
2020 Promotional Agreements \| Magic Johnson Entertainment \| Company Determined As Publicly Traded
Loss Contingencies [Line Items]
Contractual Obligation			$ 5,000
Cash paid to settle liability for award under share-based payment arrangement			$ 4,000
Prepaid expenses						4,000		$ 4,000
2020 Promotional Agreements \| Craw Daddy Productions \| Company Determined As Publicly Traded
Loss Contingencies [Line Items]
Agreement termination amount		$ 5,000
Equity compensation as a percentage of fair market value of Avalon House (percent)		10.00%
2020 Promotional Agreements \| Big Sky Inc \| Malibu Crew
Loss Contingencies [Line Items]
Commitment fee percentage											1.00%
Studios covered \| studio											5
2020 Promotional Agreements \| Gregnorman
Loss Contingencies [Line Items]
Commitment fee percentage													15.00%
Property Lease Guarantee
Loss Contingencies [Line Items]
Guarantee lease payments						$ 5,200		$ 5,200
Property Lease Guarantee \| Minimum
Loss Contingencies [Line Items]
Lease payment term						4 years		4 years
Property Lease Guarantee \| Maximum
Loss Contingencies [Line Items]
Lease payment term						10 years		10 years