Note 3 - Long-term Debt (Details Textual) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Dec. 31, 2021
Interest Paid, Excluding Capitalized Interest, Operating Activities	$ 44	$ 32
2026 Notes [Member]
Debt Instrument, Interest Rate, Stated Percentage	5.875%		5.875%
2027 Notes [Member]
Debt Instrument, Interest Rate, Stated Percentage	7.00%		7.00%
2030 Notes [Member]
Debt Instrument, Interest Rate, Stated Percentage	4.75%		4.75%
Notes 2031 [Member]
Debt Instrument, Interest Rate, Stated Percentage	5.375%		5.375%
The 2017 Senior Credit Facility [Member] | The 2017 Term Loan [Member]
Debt Instrument, Interest Rate, Effective Percentage	2.70%
The 2019 Senior Credit Facility [Member] | The 2019 Term Loan [Member]
Debt Instrument, Interest Rate, Effective Percentage	2.70%
The 2021 Senior Credit Facility [Member] | The 2021 Term Loan [Member]
Debt Instrument, Interest Rate, Effective Percentage	3.20%