Debt Obligations - Future Maturities (Details) - USD ($)	1 Months Ended	12 Months Ended
	Jan. 31, 2023	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Scheduled Principal Payments
2023		$ 49,160,000
2024		49,160,000
2025		229,500,000
2026		101,500,000
2027		54,500,000
Thereafter		286,000,000
Total		769,820,000
Other information
Borrowings		269,000,000	$ 304,400,000	$ 24,000,000
Outstanding Balance		767,854,000	722,719,000
Available for borrowing		270,000,000	289,100,000
Payments on debt		223,060,000	230,560,000	68,160,000
Revolving line of credit
Scheduled Principal Payments
2025		130,000,000
Total		130,000,000
Other information
Borrowings		194,000,000	204,400,000	24,000,000
Outstanding Balance		130,000,000	110,900,000
Available for borrowing		270,000,000	289,100,000
Payments on debt		174,900,000	183,400,000	28,000,000
Revolving line of credit | Subsequent Event
Other information
Borrowings	$ 162,700,000
Outstanding Balance	292,700,000
Available for borrowing	107,300,000
Term loans
Scheduled Principal Payments
2025		50,000,000
2026		50,000,000
Total		100,000,000
Other information
Borrowings			100,000,000
Outstanding Balance		99,511,000	99,363,000
Senior Unsecured Notes
Scheduled Principal Payments
2023		49,160,000
2024		49,160,000
2025		49,500,000
2026		51,500,000
2027		54,500,000
Thereafter		286,000,000
Total		539,820,000
Other information
Borrowings		75,000,000
Outstanding Balance		538,343,000	512,456,000
Payments on debt		$ 48,160,000	$ 47,160,000	$ 40,160,000
Senior Unsecured Notes | Subsequent Event
Other information
Outstanding Balance	531,343,000
Payments on debt	$ 7,000,000