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Debt - Additional Information (Detail)
€ in Millions
1 Months Ended 12 Months Ended
Dec. 17, 2019
Hospital
Aug. 31, 2018
Hospital
Aug. 03, 2018
EUR (€)
Jul. 31, 2019
USD ($)
Aug. 31, 2018
Hospital
Dec. 31, 2017
USD ($)
Dec. 31, 2017
EUR (€)
Dec. 23, 2019
USD ($)
Feb. 01, 2017
USD ($)
Debt Instrument [Line Items]                  
Aggregate committed amount of credit facility                 $ 500,000,000
Term Loans [Member]                  
Debt Instrument [Line Items]                  
Accelerated debt issue cost amortization expense               $ 2,000,000.0  
Payments of lines of credit | €             € 200    
Aggregate committed amount of credit facility           $ 1,000,000,000.0      
Debt refinancing costs           32,600,000      
Barclays Bank P L C [Member] | Senior Unsecured Term Loan Facility [Member]                  
Debt Instrument [Line Items]                  
Underwriting and other fees       $ 4,200,000          
Mortgage Loans [Member]                  
Debt Instrument [Line Items]                  
Prepayment of mortgage loans           $ 12,900,000      
Acute Care Hospital [Member]                  
Debt Instrument [Line Items]                  
Number of facilities acquired | Hospital 10                
Primotop Holdings S.a.r.l. [Member] | Germany [Member] | Acute Care Hospital [Member]                  
Debt Instrument [Line Items]                  
Proceeds from issuance of new secured debt | €     € 655            
Number of facilities acquired | Hospital         71        
Primotop Holdings S.a.r.l. [Member] | Germany [Member] | Acute Care Hospital [Member] | Secured Debt [Member]                  
Debt Instrument [Line Items]                  
Number of facilities acquired | Hospital   71              
Debt instrument term   7 years              
Debt instrument swapped fixed rate   2.30%     2.30%