Note 7 - Business Segments - Summary of Financial Information by Reporting Segment (Details) - USD ($) |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
Sep. 30, 2026 |
Sep. 30, 2025 |
Sep. 30, 2026 |
Sep. 30, 2025 |
|
| Revenues: | ||||
| Net patient revenues | $ 397,446,000 | $ 370,989,000 | $ 1,145,610,000 | $ 1,095,945,000 |
| Other revenues | 10,525,000 | 11,672,000 | 52,207,000 | 35,323,000 |
| Net operating revenues | 407,971,000 | 382,661,000 | 1,197,817,000 | 1,131,268,000 |
| Net patient revenues | 397,446,000 | 370,989,000 | 1,145,610,000 | 1,095,945,000 |
| Costs and expenses: | ||||
| Salaries, wages, and benefits | 251,937,000 | 233,176,000 | 728,913,000 | 687,840,000 |
| Other operating | 99,461,000 | 96,604,000 | 285,173,000 | 281,004,000 |
| Rent | 1,365,000 | 11,345,000 | 24,548,000 | 34,038,000 |
| Depreciation and amortization | 14,576,000 | 11,158,000 | 37,363,000 | 33,151,000 |
| Total costs and expenses | 367,339,000 | 352,283,000 | 1,075,997,000 | 1,036,033,000 |
| Income/(loss) from operations | 40,632,000 | 30,378,000 | 121,820,000 | 95,235,000 |
| Non-operating income (loss) | 3,637,000 | 4,660,000 | 11,566,000 | 13,871,000 |
| Interest expense | 6,991,000 | 1,456,000 | 7,273,000 | 5,555,000 |
| Unrealized losses on marketable equity securities | (17,599,000) | 20,827,000 | (7,610,000) | 26,748,000 |
| Income/(loss) before income taxes | 19,679,000 | 54,409,000 | 118,503,000 | 130,299,000 |
| Segment Reporting, Reconciling Item, Corporate Nonsegment [Member] | ||||
| Revenues: | ||||
| Net patient revenues | 0 | 0 | 0 | 0 |
| Other revenues | 10,186,000 | 11,279,000 | 51,121,000 | 34,126,000 |
| Net operating revenues | 10,186,000 | 11,279,000 | 51,121,000 | 34,126,000 |
| Net patient revenues | 0 | 0 | 0 | 0 |
| Costs and expenses: | ||||
| Salaries, wages, and benefits | 14,249,000 | 13,643,000 | 41,851,000 | 39,641,000 |
| Other operating | 3,656,000 | 3,195,000 | 11,601,000 | 7,971,000 |
| Rent | 309,000 | 1,921,000 | 4,220,000 | 5,762,000 |
| Depreciation and amortization | 1,540,000 | 798,000 | 3,389,000 | 2,369,000 |
| Total costs and expenses | 19,754,000 | 19,557,000 | 61,061,000 | 55,743,000 |
| Income/(loss) from operations | (9,568,000) | (8,278,000) | (9,940,000) | (21,617,000) |
| Non-operating income (loss) | 3,637,000 | 4,660,000 | 11,566,000 | 13,871,000 |
| Interest expense | (0) | (0) | (0) | (0) |
| Unrealized losses on marketable equity securities | (17,599,000) | 20,827,000 | (7,610,000) | 26,748,000 |
| Income/(loss) before income taxes | (23,530,000) | 17,209,000 | (5,984,000) | 19,002,000 |
| Inpatient Services Segment [Member] | Operating Segments [Member] | ||||
| Revenues: | ||||
| Net patient revenues | 356,143,000 | 331,349,000 | 1,023,778,000 | 981,838,000 |
| Other revenues | 339,000 | 393,000 | 1,086,000 | 1,197,000 |
| Net operating revenues | 356,482,000 | 331,742,000 | 1,024,864,000 | 983,035,000 |
| Net patient revenues | 356,143,000 | 331,349,000 | 1,023,778,000 | 981,838,000 |
| Costs and expenses: | ||||
| Salaries, wages, and benefits | 212,869,000 | 195,745,000 | 612,759,000 | 578,824,000 |
| Other operating | 88,492,000 | 86,745,000 | 252,473,000 | 252,064,000 |
| Rent | 415,000 | 8,823,000 | 18,436,000 | 26,486,000 |
| Depreciation and amortization | 12,898,000 | 10,219,000 | 33,575,000 | 30,380,000 |
| Total costs and expenses | 314,674,000 | 301,532,000 | 917,243,000 | 887,754,000 |
| Income/(loss) from operations | 41,808,000 | 30,210,000 | 107,621,000 | 95,281,000 |
| Non-operating income (loss) | 0 | 0 | 0 | 0 |
| Interest expense | 6,991,000 | 1,456,000 | 7,273,000 | 5,555,000 |
| Unrealized losses on marketable equity securities | 0 | 0 | 0 | 0 |
| Income/(loss) before income taxes | 34,817,000 | 28,754,000 | 100,348,000 | 89,726,000 |
| Homecare Services Segment [Member] | Operating Segments [Member] | ||||
| Revenues: | ||||
| Net patient revenues | 41,303,000 | 39,640,000 | 121,832,000 | 114,107,000 |
| Other revenues | 0 | 0 | 0 | 0 |
| Net operating revenues | 41,303,000 | 39,640,000 | 121,832,000 | 114,107,000 |
| Net patient revenues | 41,303,000 | 39,640,000 | 121,832,000 | 114,107,000 |
| Costs and expenses: | ||||
| Salaries, wages, and benefits | 24,819,000 | 23,788,000 | 74,303,000 | 69,375,000 |
| Other operating | 7,313,000 | 6,664,000 | 21,099,000 | 20,969,000 |
| Rent | 641,000 | 601,000 | 1,892,000 | 1,790,000 |
| Depreciation and amortization | 138,000 | 141,000 | 399,000 | 402,000 |
| Total costs and expenses | 32,911,000 | 31,194,000 | 97,693,000 | 92,536,000 |
| Income/(loss) from operations | 8,392,000 | 8,446,000 | 24,139,000 | 21,571,000 |
| Non-operating income (loss) | 0 | 0 | 0 | 0 |
| Interest expense | (0) | (0) | (0) | (0) |
| Unrealized losses on marketable equity securities | 0 | 0 | 0 | 0 |
| Income/(loss) before income taxes | $ 8,392,000 | $ 8,446,000 | $ 24,139,000 | $ 21,571,000 |