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Goodwill and Intangible Assets, Net - Intangible Assets, Net (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Finite-Lived Intangible Assets [Line Items] |  |  |
Gross Carrying Amount | $ 442,376 | $ 398,034 |
Accumulated Amortization | 162,592 | 133,042 |
Total future amortization of intangible assets | 279,784 | 264,992 |
Amortization of intangible assets | 29,400 | 32,300 | $ 37,100
Discontinued Operations, Disposed of by Sale | True Health |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Intangible assets, net |  | 3,080 |
Amortization of intangible assets | $ 200 | $ 600 | $ 600
Corporate trade name |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Weighted- Average Remaining Useful Life | 12 years 4 months 24 days | 13 years 2 months 12 days |
Gross Carrying Amount | $ 25,800 | $ 23,300 |
Accumulated Amortization | 7,693 | 6,271 |
Total future amortization of intangible assets | $ 18,107 | $ 17,029 |
Customer relationships |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Weighted- Average Remaining Useful Life | 14 years 10 months 24 days | 16 years 2 months 12 days |
Gross Carrying Amount | $ 311,019 | $ 278,519 |
Accumulated Amortization | 72,697 | 57,716 |
Total future amortization of intangible assets | $ 238,322 | $ 220,803 |
Customer relationships | Discontinued Operations, Disposed of by Sale | True Health |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Weighted- Average Remaining Useful Life |  | 15 years |
Intangible assets, net |  | $ 2,200 |
Technology |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Weighted- Average Remaining Useful Life | 2 years | 1 year 9 months 18 days |
Gross Carrying Amount | $ 87,922 | $ 82,922 |
Accumulated Amortization | 73,378 | 63,507 |
Total future amortization of intangible assets | $ 14,544 | $ 19,415 |
Below market lease, net |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Weighted- Average Remaining Useful Life | 1 year 3 months 18 days | 2 years 3 months 18 days |
Gross Carrying Amount | $ 1,218 | $ 1,118 |
Accumulated Amortization | 950 | 648 |
Total future amortization of intangible assets | $ 268 | $ 470 |
Provider network contracts |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Weighted- Average Remaining Useful Life | 2 years 2 months 12 days | 2 years 10 months 24 days |
Gross Carrying Amount | $ 16,417 | $ 12,175 |
Accumulated Amortization | 7,874 | 4,900 |
Total future amortization of intangible assets | $ 8,543 | $ 7,275 |
Provider network contracts | Discontinued Operations, Disposed of by Sale | True Health |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Weighted- Average Remaining Useful Life |  | 10 months |
Intangible assets, net |  | $ 900 |

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