Long-Term Debt - Schedule of Long-term Debt (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Oct. 01, 2021	Sep. 30, 2021
Debt Instrument [Line Items]
Finance lease obligation	$ 10,000		$ 10,000
Borrowings and securitization (2)	55,000		0
Subtotal	1,101,000		1,027,000
Less: short-term debt	(74,000)		(19,000)
Long-term debt	1,027,000		1,008,000
Convertible Notes
Debt Instrument [Line Items]
Unamortized discount on convertible notes	$ 0		(23,000)
3.25 percent convertible notes due 2037 \| Convertible Notes
Debt Instrument [Line Items]
Interest rate	3.25%	3.25%
Debt	$ 321,000		321,000
4.50 percent notes due 2028 \| Senior Notes
Debt Instrument [Line Items]
Interest rate	4.50%
Long-term debt outstanding	$ 270,000		270,000
6.25 percent notes due 2025 \| Senior Notes
Debt Instrument [Line Items]
Interest rate	6.25%
Long-term debt outstanding	$ 296,000		296,000
Term loan due 2024 \| Term Loan
Debt Instrument [Line Items]
Long-term debt outstanding	$ 149,000		$ 153,000

Amount of short-term debt and current maturity of long-term debt and capital lease obligations due within one year or the normal operating cycle, if longer.

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Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

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Contractual interest rate for funds borrowed, under the debt agreement.

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Amount, after accumulated amortization, of debt discount.

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Present value of lessee's discounted obligation for lease payments from finance lease.

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Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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Amount of long-term debt and lease obligation, classified as noncurrent.

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Amount of long-term debt and lease obligation, including portion classified as current.

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This is the principal amount outstanding for securitized loans only (across all types of loans).

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