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Goodwill and Other Intangible Assets - Intangible Assets (Details) - USD ($) $ in Thousands | 3 Months Ended |
--- | --- | ---
Mar. 31, 2022 | Dec. 31, 2021
Schedule of intangible assets |  |
Intangible assets, gross carrying amount | $ 387,297 | $ 387,269
Accumulated Amortization | (228,602) | (221,145)
Total acquired intangible assets, Net carrying amount | 158,695 | 166,124
Net Carrying Amount | 113,495 |
Trade names |  |
Schedule of intangible assets |  |
Indefinite lived intangible assets | 45,200 | 45,200
Facility management contracts |  |
Schedule of intangible assets |  |
Gross Carrying Amount | 308,397 | 308,369
Accumulated Amortization | (196,317) | (189,163)
Net Carrying Amount | $ 112,080 | 119,206
Amortization period | 16 years 3 months 18 days |
Technology |  |
Schedule of intangible assets |  |
Gross Carrying Amount | $ 33,700 | 33,700
Accumulated Amortization | (32,285) | (31,982)
Net Carrying Amount | $ 1,415 | $ 1,718
Amortization period | 7 years 3 months 18 days |

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