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Borrowings - Unsecured Notes (Details) - USD ($) $ in Thousands												12 Months Ended
	Jul. 14, 2022	Jun. 15, 2022	Mar. 08, 2021	Feb. 16, 2021	Jan. 29, 2021	Apr. 30, 2019	Sep. 25, 2018	Jul. 05, 2018	Jan. 30, 2018	Jun. 30, 2017	May 06, 2016	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018	Oct. 17, 2018	Sep. 30, 2016
Debt Instrument [Line Items]
Face amount												$ 300,000
Repayment of Unsecured Notes												55,000	$ 141,750	$ 0
Amortization of financing costs												6,837	7,388	4,935
Unsecured Notes outstanding balance												531,500	511,500	453,250
Unsecured Notes
Debt Instrument [Line Items]
Interest expense												25,033	24,401	23,839
Amortization of financing costs												$ 801	$ 1,864	$ 1,276
Weighted average interest rate												4.80%	4.70%	5.30%
Effective interest rate												4.90%	5.10%	5.50%
Average debt outstanding												$ 526,829	$ 516,611	$ 453,250	$ 414,949	$ 266,296
Unsecured Notes | Minimum
Debt Instrument [Line Items]
Face amount												$ 150,000
2016 Unsecured Notes
Debt Instrument [Line Items]
Repayment of Unsecured Notes				$ 90,000
2016 Unsecured Notes | Unsecured Notes
Debt Instrument [Line Items]
Face amount											$ 50,000							$ 40,000
Term of debt											5 years
Stated interest rate											5.313%
2017A Unsecured Notes
Debt Instrument [Line Items]
Repayment of Unsecured Notes	$ 55,000
2017A Unsecured Notes | Unsecured Notes
Debt Instrument [Line Items]
Face amount										$ 55,000
Term of debt										5 years
Stated interest rate										4.76%
2018A Unsecured Notes | Unsecured Notes
Debt Instrument [Line Items]
Face amount									$ 90,000
Term of debt									5 years
Stated interest rate									4.87%
2018B Unsecured Notes | Unsecured Notes
Debt Instrument [Line Items]
Face amount								$ 50,000
Term of debt								5 years
Stated interest rate								5.36%
2019A Unsecured Notes | Unsecured Notes
Debt Instrument [Line Items]
Face amount						$ 116,500
Term of debt						5 years
Stated interest rate						5.494%
2021A Unsecured Notes | Unsecured Notes
Debt Instrument [Line Items]
Face amount					$ 200,000
Term of debt					5 years
Stated interest rate					3.875%
2022A Unsecured Notes | Unsecured Notes
Debt Instrument [Line Items]
Face amount		$ 75,000
Term of debt		5 years
Stated interest rate		5.90%
5.75% Unsecured Notes | Unsecured Notes
Debt Instrument [Line Items]
Face amount							$ 50,000										$ 1,750
Term of debt							5 years
Stated interest rate							5.75%
Redemption of principal			$ 51,750
Redemption as a percentage of principal			100.00%

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