v3.21.2
Summary of Significant Accounting Policies - Additional Information (Detail) - USD ($)
$ in Thousands
 1 Months Ended 3 Months Ended 9 Months Ended
Sep. 30, 2021
Sep. 30, 2021
Sep. 30, 2020
Sep. 30, 2021
Sep. 30, 2020
Jun. 30, 2021
Dec. 31, 2020
Jun. 30, 2020
Dec. 31, 2019
Finite-Lived Intangible Assets [Line Items]                  
Additional impairment charges       $ 0          
Amortization expense   $ 3,757 $ 2,459 3,757 $ 14,517        
Depreciation and amortization   36,682 31,363 98,620 102,503        
Aggregate sale price   26,567 9,816 71,905 57,539        
Carrying value, net of amortized lease intangibles   24,244 8,327 (58,817) 45,085        
Loss on sale of properties   1,220 1,060 9,791 9,725        
Earnout liability $ 0 0 13,177 0 13,177 $ 10,063 $ 7,509 $ 37,975 $ 0
Long-term Debt 1,597,868 1,597,868   1,597,868          
Unsecured Debt                  
Finite-Lived Intangible Assets [Line Items]                  
Long-term Debt 1,490,123 1,490,123   1,490,123     1,433,796    
Lease Termination Impact                  
Finite-Lived Intangible Assets [Line Items]                  
Lease termination fee   35,000   35,000          
Lease Termination Income       35,000          
Accrued rental income       1,496          
Depreciation and amortization       4,047          
Aggregate sale price 16,000                
Carrying value, net of amortized lease intangibles 41,085                
Loss on sale of properties   25,746   (25,746)          
Selling Expense 661                
Proceeds from sale of property       16,000          
Term Loan [Member] | Unsecured Debt                  
Finite-Lived Intangible Assets [Line Items]                  
Long-term Debt 646,458 646,458   646,458     961,330    
Senior Notes [Member] | Unsecured Debt                  
Finite-Lived Intangible Assets [Line Items]                  
Long-term Debt $ 843,665 843,665   843,665     $ 472,466    
Above And Below Market Leases [Member] | Lease Revenues Net [Member]                  
Finite-Lived Intangible Assets [Line Items]                  
Amortization expense   944 (149) 2,362 25        
Above And Below Market Leases [Member] | Lease Revenues Net [Member] | Lease Termination Impact                  
Finite-Lived Intangible Assets [Line Items]                  
Amortization expense       289          
Leases, Acquired-in-Place [Member] | Depreciation And Amortization [Member]                  
Finite-Lived Intangible Assets [Line Items]                  
Amortization expense   $ 11,424 $ 8,026 25,429 $ 32,060        
Leases, Acquired-in-Place [Member] | Depreciation And Amortization [Member] | Lease Termination Impact                  
Finite-Lived Intangible Assets [Line Items]                  
Amortization expense       $ (4,046)