Leases - Operating and Finance Lease Right-of-use-assets and Related Lease Obligations (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Leases
Operating lease assets	$ 10,660	$ 12,146
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible List]	Operating lease assets	Operating lease assets
Finance lease assets	$ 17,623	$ 17,942
Finance Lease, Right-of-Use Asset, Statement of Financial Position [Extensible List]	Finance lease assets	Finance lease assets
Total leased assets	$ 28,283	$ 30,088
Operating liabilities current	$ 4,276	$ 5,367
Operating Lease, Liability, Current, Statement of Financial Position [Extensible List]	Other Liabilities, Current	Other Liabilities, Current
Finance liabilities current	$ 1,297	$ 1,229
Finance Lease, Liability, Current, Statement of Financial Position [Extensible List]	Finance liabilities current	Finance liabilities current
Operating liabilities noncurrent	$ 5,638	$ 6,931
Operating Lease, Liability, Noncurrent, Statement of Financial Position [Extensible List]	Other Liabilities, Noncurrent	Other Liabilities, Noncurrent
Finance liabilities noncurrent	$ 44,831	$ 45,185
Finance Lease, Liability, Noncurrent, Statement of Financial Position [Extensible List]	Finance liabilities noncurrent	Finance liabilities noncurrent
Total lease liabilities	$ 56,042	$ 58,712
Operating Lease, Liability, Statement of Financial Position [Extensible List]	Other Liabilities, Current, Other Liabilities, Noncurrent	Other Liabilities, Current, Other Liabilities, Noncurrent
Finance lease, accumulated depreciation	$ 46,200	$ 45,900
Prepaid financing costs	$ 600	$ 600