Debt Obligations - Additional Information (Details) - USD ($) $ in Thousands						3 Months Ended		9 Months Ended		12 Months Ended
	Dec. 22, 2021	Oct. 28, 2021	Jan. 03, 2018	Oct. 07, 2017	Oct. 05, 2017	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021	Dec. 31, 2021	Mar. 31, 2023	Dec. 14, 2020	Oct. 02, 2020
Line of Credit Facility [Line Items]
Net Carrying Value						$ 170,774		$ 170,774		$ 212,496
Payment during period		$ 88,600
Optional Repayment		86,800
Prepayment Penalty		1,200
Debt interest payment		$ 600
Amortization of debt issuance costs						200	$ 700	600	$ 2,100
Debt issuance costs								$ 1,400	900
Revolving Credit Facility
Line of Credit Facility [Line Items]
Notes payable maturity date								Dec. 22, 2025
Net Carrying Value						49,900		$ 49,900		90,900
Gross revolving credit facility state tax credits						0		0		0
Outstanding Debt						$ 10,000		$ 10,000
Principal Balance	$ 200,000
Debt interest payment	2,100
Extinguishment Fee	3,700
Available balance	125,000
Interest rate above prime rate						0.25%		0.25%
Matures date								Jun. 15, 2022
Unamortized debt issuance expense						$ 0		$ 0		8
Term Loan
Line of Credit Facility [Line Items]
Notes payable maturity date								Dec. 22, 2025
Net Carrying Value						123,707		$ 123,707		124,585
Term Loan								125,000		125,000
Interest expense						2,100		$ 4,600
Term Loan | Revolving Credit Facility
Line of Credit Facility [Line Items]
Notes payable maturity date								Dec. 22, 2025
Term Loan	125,000
Line of credit facility with accordian feature	$ 125,000
Unamortized debt issuance expense						4,100		$ 4,100		3,400
2018 TAB Payments
Line of Credit Facility [Line Items]
Interest expense						0	300	0	700
Term SOFR Loans
Line of Credit Facility [Line Items]
Interest Rate Plus	2.10%
Principal contractually repaid rate											1.25%
Senior Secured Credit Facility
Line of Credit Facility [Line Items]
Amount of term loan credit facility				$ 130,000
Unamortized debt issuance expense						$ 0		$ 0		$ 0
Senior Secured Credit Facility | Line of Credit
Line of Credit Facility [Line Items]
Outstanding Debt				$ 5,000
Senior Secured Credit Facility | Term Loan
Line of Credit Facility [Line Items]
Aggregate on the term loan in tranches				Jul. 31, 2019
Debt instrument, Term				5 years
Outstanding Debt				$ 125,000			$ 35,000		$ 35,000			$ 68,000	$ 91,400
Senior Secured Credit Facility | Term Loan | Maximum
Line of Credit Facility [Line Items]
Amount of term loan credit facility				$ 125,000
RCP 2 | 2017 Seller Note
Line of Credit Facility [Line Items]
Notes payable					$ 81,300
Notes payable maturity date					Jan. 15, 2025
RCP 3 | 2018 Seller Note
Line of Credit Facility [Line Items]
Notes payable			$ 22,100
Notes payable maturity date			Jan. 15, 2025
RCP 3 | 2018 TAB Payments
Line of Credit Facility [Line Items]
Notes payable maturity date			Apr. 15, 2023
Amortized tax benefit			$ 48,400