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Note 12 - Fair Value Measurements (Tables)

12 Months Ended

Dec. 31, 2019

Notes Tables

Fair Value, by Balance Sheet Grouping [Table Text Block]

		*December 31, 2019*
*(In thousands)*		*Balance*				*Level 1*				*Level 2*				*Level 3*
Assets
Cash and cash equivalents		$	249,977			$	249,977			$	—			$	—
Restricted cash			20,471				20,471				—				—
Investment available for sale			16,151				—				—				16,151

Liabilities
Contingent payments		$	1,712			$	—			$	—			$	1,712

		*December 31, 2018*
*(In thousands)*		*Balance*				*Level 1*				*Level 2*				*Level 3*
Assets
Cash and cash equivalents		$	249,417			$	249,417			$	—			$	—
Restricted cash			23,785				23,785				—				—
Investment available for sale			15,772				—				—				15,772

Liabilities
Contingent payments		$	2,407			$	—			$	—			$	2,407

Fair Value Asset (Liability) Measured On Recurring Basis Unobservable Input Reconciliation [Table Text Block]

		*December 31, 2019*
		*Assets*				*Liability*
*(In thousands)*		*Investment Available for Sale*				*Contingent Payments*
Balance at beginning of reporting period		$	15,772			$	(2,407	)
Total gains (losses) (realized or unrealized):
Included in interest income (expense)			150				(140	)
Included in other comprehensive income (loss)			739				—
Included in other items, net			—				(42	)
Purchases, sales, issuances and settlements:
Settlements			(510	)			877
Balance at end of reporting period		$	16,151			$	(1,712	)

		*December 31, 2018*
		*Assets*				*Liability*
*(In thousands)*		*Investment Available for Sale*				*Contingent Payments*
Balance at beginning of reporting period		$	17,752			$	(2,887	)
Total gains (losses) (realized or unrealized):
Included in interest income (expense)			144				(249	)
Included in other comprehensive income (loss)			(1,649	)			—
Included in other items, net			—				(110	)
Purchases, sales, issuances and settlements:
Settlements			(475	)			839
Balance at end of reporting period		$	15,772			$	(2,407	)

Fair Value, Liabilities Measured on Recurring and Nonrecurring Basis [Table Text Block]

		*December 31, 2019*
*(In thousands)*		*Outstanding Face Amount*				*Carrying Value*				*Estimated Fair Value*			*Fair Value Hierarchy*
Liabilities
Obligation under assessment arrangements		$	28,118			$	23,300			$	28,780		Level 3

		*December 31, 2018*
*(In thousands)*		*Outstanding Face Amount*				*Carrying Value*				*Estimated Fair Value*			*Fair Value Hierarchy*
Liabilities
Obligation under assessment arrangements		$	29,943			$	24,477			$	29,591		Level 3

Schedule of Carrying Values and Estimated Fair Values of Debt Instruments [Table Text Block]

		*December 31, 2019*
*(In thousands)*		*Outstanding Face Amount*				*Carrying Value*				*Estimated Fair Value*			*Fair Value Hierarchy*
Bank credit facility		$	1,305,634			$	1,290,708			$	1,308,846		Level 2
6.375% senior notes due 2026			750,000				741,729				806,250		Level 1
6.000% senior notes due 2026			700,000				690,756				750,750		Level 1
4.750% senior notes due 2027			1,000,000				984,416				1,038,750		Level 1
Other			58,322				58,322				58,322		Level 3
Total debt		$	3,813,956			$	3,765,931			$	3,962,918

		*December 31, 2018*
*(In thousands)*		*Outstanding Face Amount*				*Carrying Value*				*Estimated Fair Value*			*Fair Value Hierarchy*
Bank credit facility		$	1,771,330			$	1,748,529			$	1,720,654		Level 2
6.875% senior notes due 2023			750,000				742,299				757,500		Level 1
6.375% senior notes due 2026			750,000				740,406				724,688		Level 1
6.000% senior notes due 2026			700,000				689,361				657,125		Level 1
Other			58,705				58,705				58,705		Level 3
Total debt		$	4,030,035			$	3,979,300			$	3,918,672