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Note 8 - Fair Value Measurements - Long-term Debt (Details) - Fair Value, Nonrecurring [Member] - USD ($) $ in Thousands	Sep. 30, 2022	Dec. 31, 2021
Long-term debt	$ 2,910,106	$ 3,069,393
Reported Value Measurement [Member]
Long-term debt	2,869,327	3,031,594
Estimate of Fair Value Measurement [Member]
Long-term debt	2,613,816	3,128,058
Fair Value, Inputs, Level 2 [Member] | Bank Credit Facility [Member] | Line of Credit [Member]
Long-term debt	1,009,400	867,897
Fair Value, Inputs, Level 2 [Member] | Bank Credit Facility [Member] | Line of Credit [Member] | Reported Value Measurement [Member]
Long-term debt	990,644	859,106
Fair Value, Inputs, Level 2 [Member] | Bank Credit Facility [Member] | Line of Credit [Member] | Estimate of Fair Value Measurement [Member]
Long-term debt	1,005,110	866,812
Fair Value, Inputs, Level 1 [Member] | Senior Note 4.750% Due 2027 [Member] | Senior Notes [Member]
Long-term debt	1,000,000	1,000,000
Fair Value, Inputs, Level 1 [Member] | Senior Note 4.750% Due 2027 [Member] | Senior Notes [Member] | Reported Value Measurement [Member]
Long-term debt	989,773	988,312
Fair Value, Inputs, Level 1 [Member] | Senior Note 4.750% Due 2027 [Member] | Senior Notes [Member] | Estimate of Fair Value Measurement [Member]
Long-term debt	881,250	1,023,750
Fair Value, Inputs, Level 1 [Member] | Senior Note 4750 Due 2031 Member | Senior Notes [Member]
Long-term debt	900,000	900,000
Fair Value, Inputs, Level 1 [Member] | Senior Note 4750 Due 2031 Member | Senior Notes [Member] | Reported Value Measurement [Member]
Long-term debt	888,204	886,746
Fair Value, Inputs, Level 1 [Member] | Senior Note 4750 Due 2031 Member | Senior Notes [Member] | Estimate of Fair Value Measurement [Member]
Long-term debt	726,750	915,750
Fair Value, Inputs, Level 1 [Member] | Senior Note 8.625% Due 2025 [Member] | Senior Notes [Member]
Long-term debt		300,000
Fair Value, Inputs, Level 1 [Member] | Senior Note 8.625% Due 2025 [Member] | Senior Notes [Member] | Reported Value Measurement [Member]
Long-term debt		295,934
Fair Value, Inputs, Level 1 [Member] | Senior Note 8.625% Due 2025 [Member] | Senior Notes [Member] | Estimate of Fair Value Measurement [Member]
Long-term debt		320,250
Fair Value, Inputs, Level 3 [Member] | Other Long-Term Debt [Member]
Long-term debt	706	1,496
Fair Value, Inputs, Level 3 [Member] | Other Long-Term Debt [Member] | Reported Value Measurement [Member]
Long-term debt	706	1,496
Fair Value, Inputs, Level 3 [Member] | Other Long-Term Debt [Member] | Estimate of Fair Value Measurement [Member]
Long-term debt	$ 706	$ 1,496

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+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Publisher FASB
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-URI https://asc.fasb.org/extlink&oid=123466577&loc=SL123495737-112612

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