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Supplemental Disclosure of Cash Flow Information - Additional Information (Details)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2019
USD ($)
community
Jun. 30, 2019
USD ($)
Jun. 30, 2018
USD ($)
Related Party Transaction [Line Items]      
Net cash paid for termination of operating leases   $ 0 $ 33,596
Joint Venture      
Related Party Transaction [Line Items]      
Payments to acquire interest in joint venture $ 13,300    
Number of communities owned | community 3    
Percentage ownership 50.00% 50.00%  
Promissory Note | Joint Venture      
Related Party Transaction [Line Items]      
Notes receivable $ 6,600 $ 6,600  
Lease termination And modification, net      
Related Party Transaction [Line Items]      
Net cash paid for termination of operating leases     46,600
Net cash paid for termination of capital and financing leases     $ 10,500