Quarterly report pursuant to Section 13 or 15(d)

Basis of Presentation and Accounting Policies - Deferred Gains (Details)

v3.19.3
Basis of Presentation and Accounting Policies - Deferred Gains (Details) - USD ($)
$ in Thousands
9 Months Ended
Sep. 30, 2019
Sep. 30, 2018
Jan. 01, 2019
Jan. 01, 2018
Deferred Gains [Roll Forward]        
Balance at beginning of period $ 43,664 $ 72,453    
Reclassification of deferred gains into historical cost on reacquired property and equipment 0 (3,052)    
Balance at end of period 12,338 53,422    
Operating Expense        
Deferred Gains [Roll Forward]        
Amortization of deferred gains on sale of property 0 (8,991)    
Gain (Loss) on Disposition of Assets        
Deferred Gains [Roll Forward]        
Amortization of deferred gains on sale of property $ (2,119) $ (6,988)    
Accounting Standards Update 2016-02 | Sale-Leaseback | Retained Earnings        
Nature of Operations and Accounting Policies [Line Items]        
Impact of adoption of accounting principle     $ 29,207 $ 0