XML 98 R55.htm IDEA: XBRL DOCUMENT v3.19.3.a.u2
SIGNIFICANT ACCOUNTING POLICIES - Property and Equipment (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Accounting Policies [Abstract]      
Depreciation expense $ 31,866 $ 28,709 $ 13,215
Capital expenditure commitments outstanding 2,800    
Property, Plant and Equipment [Line Items]      
Property and equipment, gross 471,200 459,613  
Accumulated depreciation (163,416) (158,341)  
Net property and equipment before construction in progress 307,784 301,272  
Capital improvements in progress 42,882 15,758  
Net property and equipment $ 350,666 317,030  
Maximum      
Property, Plant and Equipment [Line Items]      
Useful life 40 years    
Land, land easements and land improvements      
Property, Plant and Equipment [Line Items]      
Property and equipment, gross $ 107,281 110,570  
Land, land easements and land improvements | Minimum      
Property, Plant and Equipment [Line Items]      
Useful life 0 years    
Land, land easements and land improvements | Maximum      
Property, Plant and Equipment [Line Items]      
Useful life 15 years    
Buildings      
Property, Plant and Equipment [Line Items]      
Property and equipment, gross $ 34,777 36,038  
Buildings | Minimum      
Property, Plant and Equipment [Line Items]      
Useful life 20 years    
Buildings | Maximum      
Property, Plant and Equipment [Line Items]      
Useful life 40 years    
Equipment      
Property, Plant and Equipment [Line Items]      
Property and equipment, gross $ 210,872 222,847  
Equipment | Minimum      
Property, Plant and Equipment [Line Items]      
Useful life 3 years    
Equipment | Maximum      
Property, Plant and Equipment [Line Items]      
Useful life 40 years    
Furniture and fixtures      
Property, Plant and Equipment [Line Items]      
Property and equipment, gross $ 19,393 18,426  
Furniture and fixtures | Minimum      
Property, Plant and Equipment [Line Items]      
Useful life 5 years    
Furniture and fixtures | Maximum      
Property, Plant and Equipment [Line Items]      
Useful life 10 years    
Other      
Property, Plant and Equipment [Line Items]      
Property and equipment, gross $ 44 44  
Leasehold improvements      
Property, Plant and Equipment [Line Items]      
Property and equipment, gross $ 98,833 $ 71,688