Long-Term Debt and Credit Facilities - Senior Secured Term Loan (Details)	Jul. 11, 2023 USD ($) item	Dec. 09, 2023 USD ($)	Sep. 30, 2023	Jul. 12, 2017 USD ($)
Long-Term Debt and Credit Facilities.
Minimum business days elect to have interest on all or a portion of the loans be charged	3 days
Senior Secured Term Loan
Long-Term Debt and Credit Facilities.
Amount of facility	$ 40,000,000.0
Adjustment rate on variable rate (in percent)	1.00%
Interest rate (in percent)	10.39%
Number of business days prior to the first day of interest period considered for calculation of interest rate	2 days
Period considered for calculation of interest rate	3 months
Maximum number of loans in effect at any given time | item	5
Minimum amount of loan may exercise	$ 500,000
Integral multiples of loan for exercise of loan	$ 100,000
Number of installments | item	11
Monthly installments	$ 500,000
Outstanding borrowings under the facility	$ 34,500,000
Number of days prior to the earliest maturity considered for maturity	91 days
Senior Secured Term Loan | Federal funds
Long-Term Debt and Credit Facilities.
Applicable margin rate	0.50%
Senior Secured Term Loan | SOFR
Long-Term Debt and Credit Facilities.
Adjustment rate on variable rate (in percent)	0.26161%
Interest rate (in percent)	11.39%
Deemed rate, if rate less than 4.00%	4.00%
Reference Rate Loan
Long-Term Debt and Credit Facilities.
Applicable margin rate	4.00%
2023 notes
Long-Term Debt and Credit Facilities.
Interest rate (in percent)				10.00%
Outstanding balance of debt		$ 912,700,000
2026 notes
Long-Term Debt and Credit Facilities.
Amount of facility				$ 1,000,000,000.0
Interest rate (in percent)			11.50%