Fair Value of Financial Instruments - Amortized Cost Basis by Year of Origination and Credit Quality Indicator (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2023	Dec. 31, 2022
Financing Receivable, Credit Quality Indicator [Line Items]
2023	$ 8,136
2022	100
2020	5,292
2019	7,897
2018	24,164
Total	45,589	$ 37,947
Current-period write-offs	0
Current-period recoveries	0
Current-period net write-offs	0
1-2 internal grade
Financing Receivable, Credit Quality Indicator [Line Items]
2023	8,136
2022	100
2020	5,292
2019	7,897
2018	17,576
Total	39,001
3-4 internal grade
Financing Receivable, Credit Quality Indicator [Line Items]
2023	0
2022	0
2020	0
2019	0
2018	6,588
Total	6,588
5 internal grade
Financing Receivable, Credit Quality Indicator [Line Items]
2023	0
2022	0
2020	0
2019	0
2018	0
Total	0
6 internal grade
Financing Receivable, Credit Quality Indicator [Line Items]
2023	0
2022	0
2020	0
2019	0
2018	0
Total	0
7 internal grade
Financing Receivable, Credit Quality Indicator [Line Items]
2023	0
2022	0
2020	0
2019	0
2018	0
Total	$ 0