Note 4 - Net Patient Revenues - Revenue Disaggregation (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Net patient revenues	$ 225,671	$ 235,264	$ 469,766	$ 471,375
Revenue, concentration percentage	100.00%	100.00%	100.00%	100.00%
Medicare [Member]
Revenue, concentration percentage	32.00%	33.00%	33.00%	34.00%
Inpatient Services [Member]
Net patient revenues	$ 214,387	$ 220,887	$ 445,374	$ 442,521
Managed Care [Member]
Revenue, concentration percentage	10.00%	11.00%	11.00%	11.00%
Homecare [Member]
Net patient revenues	$ 11,284	$ 14,377	$ 24,392	$ 28,854
Medicaid [Member]
Revenue, concentration percentage	32.00%	29.00%	30.00%	28.00%
Private Pay and Other [Member]
Revenue, concentration percentage	26.00%	27.00%	26.00%	27.00%

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