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Note 10 - Fair Value Measurements - Carrying Amounts and Fair Values (Details) $ in Thousands	Sep. 30, 2022 USD ($)
Reported Value Measurement [Member]
Interest rate swap asset	$ 73,299
Derivative liabilities	73,299
Estimate of Fair Value Measurement [Member]
Interest rate swap asset	73,299
Derivative liabilities	73,299
Fair Value, Inputs, Level 2 [Member] | Reported Value Measurement [Member] | Senior Credit Facilities [Member]
Long-term debt (including current portion)	2,286,592
Fair Value, Inputs, Level 2 [Member] | Reported Value Measurement [Member] | New Notes [Member]
Long-term debt (including current portion)	650,000
Fair Value, Inputs, Level 2 [Member] | Reported Value Measurement [Member] | The 2026 Notes and the 2028 Notes [Member]
Long-term debt (including current portion)	920,000
Fair Value, Inputs, Level 2 [Member] | Estimate of Fair Value Measurement [Member] | Senior Credit Facilities [Member]
Long-term debt (including current portion)	2,252,293
Fair Value, Inputs, Level 2 [Member] | Estimate of Fair Value Measurement [Member] | New Notes [Member]
Long-term debt (including current portion)	503,750
Fair Value, Inputs, Level 2 [Member] | Estimate of Fair Value Measurement [Member] | The 2026 Notes and the 2028 Notes [Member]
Long-term debt (including current portion)	688,804
Fair Value, Inputs, Level 3 [Member] | Reported Value Measurement [Member] | MBI Net Option [Member]
Interest rate swap asset	35,520
Derivative liabilities	35,520
Fair Value, Inputs, Level 3 [Member] | Estimate of Fair Value Measurement [Member] | MBI Net Option [Member]
Interest rate swap asset	35,520
Derivative liabilities	35,520
Money Market Funds [Member] | Fair Value, Inputs, Level 1 [Member] | Reported Value Measurement [Member]
Money market investments	107,718
Commercial paper	107,718
Money Market Funds [Member] | Fair Value, Inputs, Level 1 [Member] | Estimate of Fair Value Measurement [Member]
Money market investments	107,718
Commercial paper	107,718
Commercial Paper [Member] | Fair Value, Inputs, Level 1 [Member] | Reported Value Measurement [Member]
Money market investments	99,495
Commercial paper	99,495
Commercial Paper [Member] | Fair Value, Inputs, Level 1 [Member] | Estimate of Fair Value Measurement [Member]
Money market investments	99,346
Commercial paper	$ 99,346

X

- Definition

Fair value portion of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.

+ References

No definition available.

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X

- Definition

Fair value, after the effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes liabilities not subject to a master netting arrangement and not elected to be offset.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 20
-Section 50
-Paragraph 3
-Subparagraph (c)
-URI https://asc.fasb.org/extlink&oid=51824906&loc=SL20225862-175312

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 20
-Section 55
-Paragraph 10
-URI https://asc.fasb.org/extlink&oid=99393222&loc=SL20226008-175313

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 10
-URI https://asc.fasb.org/extlink&oid=123594938&loc=d3e13433-108611

Reference 4: http://www.xbrl.org/2003/role/exampleRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 20
-Section 55
-Paragraph 22
-URI https://asc.fasb.org/extlink&oid=99393222&loc=SL20226052-175313

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X

- Definition

The fair value amount of long-term debt whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission.

+ References

No definition available.

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