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Goodwill and Other Intangible Assets - Intangible Assets (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2020
Dec. 31, 2019
Schedule of intangible assets    
Intangible assets, gross carrying amount $ 387,218 $ 387,332
Accumulated Amortization (182,831) (177,262)
Total acquired intangible assets, Net carrying amount 204,387 210,070
Net Carrying Amount 159,187  
Trade names    
Schedule of intangible assets    
Indefinite lived intangible assets 45,200 45,200
Facility management contracts    
Schedule of intangible assets    
Gross Carrying Amount 308,318 308,432
Accumulated Amortization (153,337) (148,171)
Net Carrying Amount $ 154,981 160,261
Amortization period 16 years 3 months 18 days  
Technology    
Schedule of intangible assets    
Gross Carrying Amount $ 33,700 33,700
Accumulated Amortization (29,494) (29,091)
Net Carrying Amount $ 4,206 $ 4,609
Amortization period 7 years 3 months 18 days