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SUBSEQUENT EVENTS Narrative (Details) - USD ($)
10 Months Ended 14 Months Ended 36 Months Ended
Feb. 25, 2019
Feb. 14, 2019
Feb. 04, 2019
Feb. 01, 2019
Sep. 09, 2015
Feb. 04, 2024
Mar. 31, 2020
Mar. 31, 2023
Jun. 29, 2018
Subsequent Event [Line Items]                  
Credit facility, maximum borrowing capacity                 $ 550,000,000
Stock repurchase program, authorized amount         $ 75,000,000        
Stock repurchase program, expiration date         Sep. 06, 2016        
Subsequent Event [Member]                  
Subsequent Event [Line Items]                  
Stock repurchase program, authorized amount $ 100,000,000                
Stock repurchase program, expiration date Mar. 01, 2020                
Subsequent Event [Member] | Amended Credit Agreement [Member]                  
Subsequent Event [Line Items]                  
Credit facility, maximum borrowing capacity     $ 725,000,000            
Reduction in basis spread on variable rate     0.25%            
Maturity date     Feb. 04, 2024            
Percentage Of Proceeds Received From Loan Party Or Subsidiary     100.00%            
Subsequent Event [Member] | Amended Credit Agreement [Member] | Base Rate [Member]                  
Subsequent Event [Line Items]                  
Description of variable rate basis     Fluctuating rate per annum equal to the highest of (a) the federal funds rate plus 0.50% per annum, (b) the prime rate of interest established by the Administrative Agent, and (c) the Eurodollar Rate for an interest period of one month plus 1% per annum            
Basis spread on variable rate (percent)     0.50%            
Subsequent Event [Member] | Amended Credit Agreement [Member] | Eurodollar [Member]                  
Subsequent Event [Line Items]                  
Description of variable rate basis     Rate at which Eurodollar deposits in the London interbank market for an interest period of one, two, three or six months            
Basis spread on variable rate (percent)     1.50%            
Subsequent Event [Member] | Amended Credit Agreement [Member] | Five Hundred Fifty Million Revolving Credit Facility [Member]                  
Subsequent Event [Line Items]                  
Principal amount     $ 550,000,000            
Subsequent Event [Member] | Amended Credit Agreement [Member] | One Hundred Seventy Five Million Term Loan Facility [Member]                  
Subsequent Event [Line Items]                  
Principal amount     175,000,000            
Debt Instrument Periodic Payment Percentage           1.875% 0.625% 1.25%  
Compassionate Care Hospice [Member] | Subsequent Event [Member] | Hospice [Member]                  
Subsequent Event [Line Items]                  
Acquisition, total purchase price       $ 340,000,000          
Payments related to tax asset and working capital       $ 50,000,000          
RoseRock Healthcare [Member] | Subsequent Event [Member] | Hospice [Member]                  
Subsequent Event [Line Items]                  
Acquisition, total purchase price   $ 17,500,000              
Minimum [Member] | Subsequent Event [Member] | Amended Credit Agreement [Member]                  
Subsequent Event [Line Items]                  
Proceeds Received From Loan Party Of Subsidiary     $ 5,000,000