Annual report pursuant to Section 13 and 15(d)

Acquisitions and Joint Venture Activities - Additional Information (Detail)

v3.20.4
Acquisitions and Joint Venture Activities - Additional Information (Detail)
$ in Thousands
12 Months Ended
Dec. 31, 2020
USD ($)
agency
Agency
subsidiary
Dec. 31, 2019
USD ($)
agency_sold
acquisition
Agency
subsidiary
Dec. 31, 2018
USD ($)
Business Acquisition [Line Items]      
Number of acquisitions funded | acquisition   3  
Consideration for acquisition $ 24,300    
Payments to noncontrolling interests 24,295 $ 19,663 $ 412
Goodwill $ 1,259,147 $ 1,219,972 $ 1,161,717
Home Health Agencies      
Business Acquisition [Line Items]      
Number of agencies | Agency 13 16  
Hospice Agencies      
Business Acquisition [Line Items]      
Number of agencies | Agency 6 8  
Home and Community Based      
Business Acquisition [Line Items]      
Number of agencies 4 2  
Home Health Agencies and Hospice Agency      
Business Acquisition [Line Items]      
Preliminary merger consideration $ 42,100 $ 61,800  
Cash paid for acquisitions 16,400 57,900  
Cash proceeds from joint venture $ 3,100    
Goodwill   55,800  
Other assets and (liabilities), net   2,800  
Noncontrolling interest   10,500  
Home Health Agencies and Hospice Agency | Trade name      
Business Acquisition [Line Items]      
Indefinite-lived intangible assets   7,400  
Home Health Agencies and Hospice Agency | Certificates of need/licenses      
Business Acquisition [Line Items]      
Indefinite-lived intangible assets   $ 7,900  
Physician Practice      
Business Acquisition [Line Items]      
Number of agencies | agency 1    
Facility-Based      
Business Acquisition [Line Items]      
Number of agencies | Agency   1  
Partnership Interest      
Business Acquisition [Line Items]      
Cash proceeds from joint venture $ 4,900    
Number of subsidiaries | subsidiary 2 4  
Number of agencies sold | agency_sold   3  
Proceeds from sale of interest $ 5,100 $ 4,200  
Payments to noncontrolling interests   $ 19,700  
Partnership Interest | Home Health Agencies      
Business Acquisition [Line Items]      
Number of agencies sold | agency 7    
Partnership Interest | Hospice Agencies      
Business Acquisition [Line Items]      
Number of agencies sold | agency 1    
Partnership Interest | Trade name      
Business Acquisition [Line Items]      
Indefinite-lived intangible assets $ 200    
Partnership Interest | Home Health Agencies      
Business Acquisition [Line Items]      
Proceeds from sale of interest in joint venture 4,400    
Partnership Interest | Home Health and Home and Community Based Agencies      
Business Acquisition [Line Items]      
Cash paid for acquisitions 6,600    
Cash proceeds from joint venture $ 3,900