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Equity-Based Compensation - Narrative (Details) $ / shares in Units, $ in Thousands	1 Months Ended		3 Months Ended			9 Months Ended		12 Months Ended
	May 31, 2021 USD ($) shares	Mar. 31, 2015	Sep. 30, 2025 USD ($) shares	Sep. 30, 2024 USD ($) shares	Mar. 31, 2022	Sep. 30, 2025 USD ($) $ / shares shares	Sep. 30, 2024 USD ($) shares	Dec. 31, 2018 $ / shares	Jan. 01, 2025	Jan. 01, 2024
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Equity-based compensation, net of capitalized amounts			$ 24,000	$ 24,000		$ 74,000	$ 69,000
Unrecognized compensation expense			191,000			$ 191,000
Unrecognized compensation expense, period for recognition						2 years 4 months 24 days
Automatic annual increase lesser of, percent of common stock									2.00%	2.00%
Conversion ratio						1.25
Cost of sales
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Equity-based compensation, net of capitalized amounts			1,000	1,000		$ 2,000	1,000
Selling, general and administrative
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Equity-based compensation, net of capitalized amounts			$ 24,000	$ 23,000		$ 74,000	$ 70,000
Class A Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of units granted in the period (in dollars per share) | $ / shares								$ 18.58
Conversion ratio					0.8
Class B Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Conversion ratio		0.8
Number of units granted in the period (in shares) | shares			0	0		0	0
Minimum | Class A Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Service-based vesting period								2 years
Minimum | Class B Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Service-based vesting period		4 years
Participation threshold (in dollars per share) | $ / shares						$ 0
Maximum | Class A Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Service-based vesting period								4 years
Maximum | Class B Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Service-based vesting period		5 years
Participation threshold (in dollars per share) | $ / shares						$ 12
Class A Common Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Conversion ratio						0.8
2017 Omnibus Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Automatic annual increase lesser of, percent of common stock			2.00%			2.00%
2017 Omnibus Incentive Plan | Class A Common Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares available for grant (in shares) | shares			20,000,000			20,000,000
Employee Stock Purchase Plan | Employee Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Equity-based compensation, net of capitalized amounts			$ 1,000	$ 1,000		$ 1,000	$ 1,000
Number of shares available for grant (in shares) | shares			364,756			364,756
Employee Stock Purchase Plan | Class A Common Stock | Employee Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
ESPP, purchase period	6 months
ESPP purchase price of common stock, percent of fair market value	90.00%
Maximum number of awards authorized for grant (in shares) | shares	500,000
ESPP, number of shares issued (in shares) | shares						3,212	6,136
Employee Stock Purchase Plan | Class A Common Stock | Employee Stock | Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
ESPP, contribution amount	$ 10
Employee Stock Purchase Plan | Class A Common Stock | Employee Stock | Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
ESPP, contribution amount	$ 25
Property, Plant, and Equipment and Finance Lease Right-of-Use Asset, after Accumulated Depreciation and Amortization
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Equity-based compensation expense capitalized			$ 2,000	2,000		$ 6,000	$ 7,000
Inventory Net
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Equity-based compensation expense capitalized			$ 1,000	$ 1,000		$ 3,000	$ 2,000

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