Leases - Components of Lease Expense (Details) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023 USD ($)	Sep. 30, 2022 USD ($)	Sep. 30, 2023 USD ($) option office	Sep. 30, 2022 USD ($)
Lessee, Lease, Description [Line Items]
Number of leased corporate offices | office			2
Finance lease cost	$ 10	$ 11	$ 30	$ 32
Non-recoverable operating expense
Lessee, Lease, Description [Line Items]
Operating lease cost	291	291	872	872
General and administrative expense
Lessee, Lease, Description [Line Items]
Operating lease cost	$ 149	$ 164	$ 459	$ 490
Michigan
Lessee, Lease, Description [Line Items]
Lessee, operating lease, number of options | option			2
Lessee, operating lease, renewal term	5 years		5 years