XML 48 R72.htm IDEA: XBRL DOCUMENT v3.20.1
Acquisitions and divestitures - Aggregate Purchase Cost Allocations for Acquisitions (Detail) - USD ($)
$ in Thousands
Mar. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Business Acquisition [Line Items]      
Goodwill $ 6,778,023 $ 6,787,635 $ 6,841,960
Dialysis and other businesses      
Business Acquisition [Line Items]      
Current assets 7,412    
Property and equipment 8,892    
Intangible and other long-term assets 6,107    
Goodwill 26,770    
Deferred income taxes 1,513    
Current liabilities (10,705)    
Aggregate purchase price $ 39,989