Quarterly report pursuant to Section 13 or 15(d)

Summary of Significant Accounting Policies - Activity (Details)

v3.19.2
Summary of Significant Accounting Policies - Activity (Details) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2019
Jun. 30, 2019
Jan. 01, 2019
Dec. 31, 2018
Accounting Policies [Abstract]        
Finance Lease, Right-of-Use Asset $ 38,928 $ 38,928 $ 18,948 $ 18,900
Operating Lease, Right-of-Use Asset 333,525 333,525 387,970 0
Leases, Right-of-Use Asset     406,900  
Finance Lease, Liability, Current 5,150 5,150 728 0
Operating Lease, Liability, Current 44,477 44,477 48,104 0
Finance Lease, Liability, Noncurrent 36,220 36,220 19,829 0
Operating Lease, Liability, Noncurrent 299,009 299,009 350,818 $ 0
Finance Lease, Right-of-Use Asset, New Leases     38  
Operating Lease, Right-of-Use Asset, New Leases     0  
Finance Lease, Liability, Current, New Leases     3  
Operating Lease, Liability, Current, New Leases     89  
Finance Lease, Liability, Noncurrent, New Leases     35  
Operating Lease, Liability, Noncurrent, New Leases     0  
Finance Lease, Right-of-Use Asset, Modifications     21,514  
Operating Lease, Right-of-Use Asset, Modifications     (33,710)  
Finance Lease, Liability, Current, Modifications     4,552  
Operating Lease, Liability, Current, Modifications     (1,615)  
Finance Lease, Liability, Noncurrent, Modifications     16,935  
Operating Lease, Liability, Noncurrent, Modifications     $ (32,200)  
Finance Lease, Right-of-Use Asset, Amortization $ (862) (1,572)    
Operating Lease, Right-of-Use Asset, Amortization   (20,735)    
Finance Lease, Liability, Current, Amortization   (133)    
Operating Lease, Liability, Current, Amortization   (2,101)    
Finance Lease, Liability, Noncurrent, Amortization   (579)    
Operating Lease, Liability, Noncurrent, Amortization   $ (19,609)