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Shareholders' Equity and Share-based Compensation - Market-based Restricted Stock Units Narrative (Details) - USD ($)				1 Months Ended		3 Months Ended
	Aug. 08, 2024	Jun. 30, 2024	Mar. 31, 2024	Sep. 30, 2023	Dec. 31, 2021	Sep. 30, 2024	Jun. 30, 2024	Sep. 30, 2023	Sep. 30, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation expense						$ 6,902,000		$ 918,000
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Roll Forward]
Weighted average remaining recognition period (in years)						3 years
Joint Venture
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Roll Forward]
Purchases from related party						$ 28,300,000		29,800,000
Scenario, Adjustment
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation expense						(800,000)		(6,300,000)
2021 Market-based Restricted Stock Units (MSU)
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]
Granted (in shares)					1,000,000
2018 Market-based Restricted Stock Units (MSU)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation expense						$ 200,000		$ 300,000
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]
Granted (in shares)									1,300,000
Market-based Restricted Stock Units (MSU)
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]
Nonvested at beginning of period (in shares)						1,727,000
Forfeited (in shares)						(8,000)
Nonvested at end of period (in shares)		1,727,000				1,719,000	1,727,000
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Roll Forward]
Nonvested at beginning of period (in dollars per share)						$ 28.15
Forfeited (in dollars per share)						0
Nonvested at end of period (in dollars per share		$ 28.15				$ 28.05	$ 28.15
Weighted average remaining recognition period (in years)		2 years 9 months 29 days	3 years 1 month 6 days
Aggregate Intrinsic Value		$ 64,537,990				$ 63,809,280	$ 64,537,990
Market-based Restricted Stock Units (MSU) | Scenario, Adjustment
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation expense				$ (6,400,000)			$ (2,400,000)
Market-based Restricted Stock Units (MSU), Pre-Modification
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Risk-free interest rate	3.93%
Expected term	2 years 4 months 24 days
Dividend yield	0.00%
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Roll Forward]
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate	57.81%

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Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.

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Weighted-average period over which cost not yet recognized is expected to be recognized for award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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Purchases during the period (excluding transactions that are eliminated in consolidated or combined financial statements) with related party.

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Weighted average fair value as of the grant date of equity-based award plans other than stock (unit) option plans that were not exercised or put into effect as a result of the occurrence of a terminating event.

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The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date.

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Per share or unit weighted-average fair value of nonvested award under share-based payment arrangement. Excludes share and unit options.

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The estimated dividend rate (a percentage of the share price) to be paid (expected dividends) to holders of the underlying shares over the option's term.

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The estimated measure of the percentage by which a share price is expected to fluctuate during a period. Volatility also may be defined as a probability-weighted measure of the dispersion of returns about the mean. The volatility of a share price is the standard deviation of the continuously compounded rates of return on the share over a specified period. That is the same as the standard deviation of the differences in the natural logarithms of the stock prices plus dividends, if any, over the period.

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The risk-free interest rate assumption that is used in valuing an option on its own shares.

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