Long-Term Debt - Real Estate Facilities (Details) $ in Thousands		1 Months Ended
	Oct. 27, 2022 USD ($)	Jun. 30, 2023 USD ($) property	Sep. 30, 2023 USD ($)	Dec. 31, 2022 USD ($)	Sep. 30, 2022 USD ($)	Dec. 31, 2021 USD ($)	Sep. 30, 2021 USD ($)	Nov. 30, 2018 USD ($)
Long-term debt
Revolving line of credit			$ 20,885	$ 20,885	$ 20,885
M & T Real Estate Facility
Long-term debt
Maximum borrowing capacity	$ 250,000
Maximum borrowing capacity, increase in capacity	$ 100,000
Commitment fee (as a percent)	0.20%
Debt instrument face amount			$ 59,200
M & T Real Estate Facility | SOFR
Long-term debt
Variable rate spread (as a percent)	2.30%
M & T Real Estate Facility | Federal Funds Effective Rate
Long-term debt
Variable rate spread (as a percent)	1.80%
M & T Real Estate Facility | Prime Rate
Long-term debt
Variable rate spread (as a percent)	1.30%
First CIBC Real Estate Facility | Secured Debt
Long-term debt
Maximum borrowing capacity								$ 21,500
Second CIBC Real Estate Facility
Long-term debt
Payments of outstanding balance		$ 7,400
Number of properties with associated secured borrowings | property		1
Second CIBC Real Estate Facility | Secured Debt
Long-term debt
Maximum borrowing capacity							$ 9,000
Third CIBC Real Estate Facility | Secured Debt
Long-term debt
Maximum borrowing capacity						$ 10,100