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Segments And Nature Of The Business (Segment Data) (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Segment Reporting Information [Line Items] |  |  |
Net income | $ 268,550 | $ 319,466 | $ 219,923
Total interest income | 377 | 757 | 513
Total interest expense | 1,868 | 2,355 | 4,535
Total income tax provision | 81,764 | 76,524 | 41,686
Total identifiable assets | 1,342,723 | 1,434,911 | 1,268,317
Total additions to long-lived assets | 58,856 | 61,793 | 189,024
Total depreciation and amortization | 59,051 | 56,583 | 45,205
Operating Segments [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Net income | 328,764 | 359,176 | 259,532
Total interest income | 25,682 | 26,897 | 26,800
Total interest expense | 755 | 506 | 514
Total income tax provision | 103,846 | 113,511 | 78,987
Total identifiable assets | 1,206,681 | 1,171,347 | 1,170,935
Total additions to long-lived assets | 58,832 | 56,547 | 188,024
Total depreciation and amortization | 58,970 | 56,447 | 45,049
Intercompany Eliminations [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Total interest income | $ (25,305) | $ (26,153) | $ (26,287)
VITAS [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Percentage of segment revenue | 59.00% | 64.00% | 66.00%
VITAS [Member] | Operating Segments [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Net income | $ 162,431 | $ 238,782 | $ 155,822
Total interest income | 18,378 | 20,565 | 18,515
Total interest expense | 160 | 166 | 169
Total income tax provision | 52,426 | 76,473 | 48,711
Total identifiable assets | 693,490 | 672,246 | 663,455
Total additions to long-lived assets | 28,583 | 28,865 | 25,530
Total depreciation and amortization | $ 23,185 | $ 22,239 | $ 20,055
Roto-Rooter [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Percentage of segment revenue | 41.00% | 36.00% | 34.00%
Roto-Rooter [Member] | Operating Segments [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Net income | $ 166,333 | $ 120,394 | $ 103,710
Total interest income | 7,304 | 6,332 | 8,285
Total interest expense | 595 | 340 | 345
Total income tax provision | 51,420 | 37,038 | 30,276
Total identifiable assets | 513,191 | 499,101 | 507,480
Total additions to long-lived assets | 30,249 | 27,682 | 162,494
Total depreciation and amortization | 35,785 | 34,208 | 24,994
Corporate [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Net income | (60,214) | (39,710) | (39,609)
Total interest income |  | 13 |
Total interest expense | 1,113 | 1,849 | 4,021
Total income tax provision | (22,082) | (36,987) | (37,301)
Total identifiable assets | 136,042 | 263,564 | 97,382
Total additions to long-lived assets | 24 | 5,246 | 1,000
Total depreciation and amortization | $ 81 | $ 136 | $ 156

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- Definition The current period expense charged against earnings on long-lived, physical assets which are not intended for resale, to allocate or recognize the cost of such assets over their useful lives; or to record the reduction in book value of an intangible asset over the benefit period of such asset; or to record current period expense charged against earnings related to stock awards. + References No definition available. + Details
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