Leases - Components of lease expense, and lease assets and liabilities (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021	Dec. 31, 2021
Lease Cost:
Amortization of right-of-use assets (included in depreciation expense)	$ 24	$ 24	$ 72	$ 420
Interest on lease liabilities	7	9	22	184
Operating lease cost	4,278	4,270	12,977	11,866
Short-term lease cost	64	90	208	281
Variable lease cost	466	410	1,408	1,324
Total lease cost	4,839	$ 4,803	14,687	14,075
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows used for finance lease			22	203
Operating cash flows used for operating leases			13,462	12,870
Financing cash flows used for finance lease			123	833
Right-of-use assets obtained in exchange for new operating lease liabilities			11,525	$ 32,398
Assets and Liabilities, Lessee [Abstract]
Finance lease right-of-use assets (included in other assets)	$ 688		$ 688		$ 760
Finance Lease, Right-of-Use Asset, Statement of Financial Position [Extensible List]	Other assets, net		Other assets, net		Other assets, net
Operating lease right-of-use assets	$ 95,533		$ 95,533		$ 99,158
Finance lease liability, current (included in current installments of long-term debt)	$ 171		$ 171		$ 165
Finance Lease, Liability, Current, Statement of Financial Position [Extensible List]	Current installments of long-term debt		Current installments of long-term debt		Current installments of long-term debt
Finance lease liability, noncurrent (included in long-term debt)	$ 399		$ 399		$ 529
Finance Lease, Liability, Noncurrent, Statement of Financial Position [Extensible List]	Long-term debt, less current installments		Long-term debt, less current installments		Long-term debt, less current installments
Operating lease liabilities, current (included in accrued liabilities)	$ 12,097		$ 12,097		$ 13,465
Operating Lease, Liability, Current, Statement of Financial Position [Extensible List]	Accrued liabilities		Accrued liabilities		Accrued liabilities
Operating lease liabilities, noncurrent	$ 87,983		$ 87,983		$ 90,878
Weighted average remaining lease term – finance leases	3 years 2 months 12 days		3 years 2 months 12 days		3 years 10 months 24 days
Weighted average remaining lease term – operating leases	9 years 10 months 24 days		9 years 10 months 24 days		10 years
Weighted average discount rate – finance leases	4.80%		4.80%		4.80%
Weighted average discount rate – operating leases	4.10%		4.10%		4.10%