Leases - Components of lease expense, and lease assets and liabilities (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022	Dec. 31, 2022
Lease Cost:
Amortization of right-of-use assets (included in depreciation expense)	$ 24	$ 24
Interest on lease liabilities	6	8
Operating lease cost	4,571	4,274
Short-term lease cost	140	80
Variable lease cost	456	469
Total lease cost	5,197	4,855
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows used for finance lease	6	8
Operating cash flows used for operating leases	4,435	5,316
Financing cash flows used for finance lease	43	41
Right-of-use assets obtained in exchange for new operating lease liabilities	5,406	$ 634
Assets and Liabilities, Lessee [Abstract]
Finance lease right-of-use assets (included in other assets)	$ 640		$ 664
Finance Lease, Right-of-Use Asset, Statement of Financial Position [Extensible List]	Other assets, net		Other assets, net
Operating lease right-of-use assets	$ 95,156		$ 93,081
Finance lease liability, current (included in current installments of long-term debt)	$ 175		$ 173
Finance Lease, Liability, Current, Statement of Financial Position [Extensible List]	Current installments of long-term debt		Current installments of long-term debt
Finance lease liability, noncurrent (included in long-term debt)	$ 311		$ 355
Finance Lease, Liability, Noncurrent, Statement of Financial Position [Extensible List]	Long-term debt, less current installments		Long-term debt, less current installments
Operating lease liabilities, current (included in accrued liabilities)	$ 13,314		$ 12,020
Operating Lease, Liability, Current, Statement of Financial Position [Extensible List]	Accrued liabilities		Accrued liabilities
Operating lease liabilities, noncurrent	$ 87,561		$ 86,687
Weighted average remaining lease term – finance leases	2 years 8 months 12 days		2 years 10 months 24 days
Weighted average remaining lease term – operating leases	9 years 3 months 18 days		9 years 9 months 18 days
Weighted average discount rate – finance leases	4.80%		4.80%
Weighted average discount rate – operating leases	4.10%		4.10%