Credit Facility - Narrative (Details) - Amended Credit Agreement - Bank of America Credit Facility - Line of Credit			9 Months Ended	12 Months Ended
	Nov. 01, 2023 USD ($)	Dec. 16, 2022 USD ($)	Sep. 30, 2024 USD ($) letterOfCredit	Dec. 31, 2023	Feb. 28, 2023 USD ($)
Revolving Line of Credit
Debt Instrument [Line Items]
Line of credit facility, maximum borrowing capacity	$ 75,000,000	$ 40,000,000.0
Line of credit facility, accordion feature, higher borrowing capacity option		120,000,000
Debt instrument, fee amount	$ 88,000	$ 10,000
Unused line fee at annual rate (as percent)		0.25%
Line of credit facility, amount available to borrow			$ 67,900,000
Principal amount outstanding			0
Cash pledged under credit agreement			$ 0
Debt instrument, term (in years)			5 years	5 years
Revolving Line of Credit | Federal Funds Rate
Debt Instrument [Line Items]
Term loan variable interest rate (as percent)		0.50%
Revolving Line of Credit | Federal Funds Rate | Minimum
Debt Instrument [Line Items]
Term loan variable interest rate (as percent)		0.50%
Revolving Line of Credit | Federal Funds Rate | Maximum
Debt Instrument [Line Items]
Term loan variable interest rate (as percent)		1.00%
Revolving Line of Credit | BSBY
Debt Instrument [Line Items]
Term loan variable interest rate (as percent)		1.00%
Basis spread on variable rate, floor (as percent)	0.00%	0.00%
Revolving Line of Credit | BSBY | Minimum
Debt Instrument [Line Items]
Term loan variable interest rate (as percent)	1.60%	1.50%
Revolving Line of Credit | BSBY | Maximum
Debt Instrument [Line Items]
Term loan variable interest rate (as percent)	2.10%	2.00%
Revolving Line of Credit | Base Rate | Minimum
Debt Instrument [Line Items]
Term loan variable interest rate (as percent)	0.60%
Revolving Line of Credit | Base Rate | Maximum
Debt Instrument [Line Items]
Term loan variable interest rate (as percent)	1.10%
Letter of Credit Subline Facility
Debt Instrument [Line Items]
Line of credit facility, maximum borrowing capacity	$ 18,800,000	$ 5,000,000.0			$ 10,000,000
Percentage of fee on average daily stated amount of outstanding letter of credit			2.25%
Percentage of fronting fee on stated amount of each letter of credit outstanding			0.125%
Number of letter of credit | letterOfCredit			4
Letters of credit outstanding amount			$ 2,400,000