Note 5 - Net Patient Revenues - Revenue Disaggregation (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Net patient revenues	$ 254,817	$ 227,383	$ 708,648	$ 697,149
Revenue, concentration percentage	100.00%	100.00%	100.00%	100.00%
Medicare [Member]
Revenue, concentration percentage	36.00%	35.00%	35.00%	34.00%
Inpatient Services [Member]
Net patient revenues	$ 222,884	$ 214,211	$ 644,986	$ 659,585
Managed Care [Member]
Revenue, concentration percentage	10.00%	11.00%	12.00%	11.00%
Homecare and Hospice [Member]
Net patient revenues	$ 31,933	$ 13,172	$ 63,662	$ 37,564
Medicaid [Member]
Revenue, concentration percentage	30.00%	28.00%	29.00%	29.00%
Private Pay and Other [Member]
Revenue, concentration percentage	24.00%	26.00%	24.00%	26.00%

Amount, including tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value-added and excise.

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+ Details