Quarterly report pursuant to Section 13 or 15(d)

Revenue - Summary of Accounts And Notes Receivable And Contract Assets and Liabilities (Details)

v3.19.1
Revenue - Summary of Accounts And Notes Receivable And Contract Assets and Liabilities (Details) - USD ($)
$ in Thousands
 3 Months Ended
Mar. 31, 2019
Mar. 31, 2019
Dec. 31, 2018
Revenue from Contract with Customer [Abstract]      
Contract Liabilities - current   $ 1,746 $ 4,081
Contract Liabilities - noncurrent   1,326 2,441
Total contract liabilities $ 3,072 3,072 $ 6,522
Change in Contract with Customer, Liability [Roll Forward]      
Contract Liabilities, beginning balance 6,522    
Decrease due to recognition of revenue (1,451)    
Increase to deferred revenue during current period 1,635    
Elimination of deferred revenue due to the adoption of fresh start accounting (3,634)    
Contract Liabilities, ending balance 3,072    
Predecessor      
Revenue from Contract with Customer [Abstract]      
Total contract liabilities 3,072 3,072  
Change in Contract with Customer, Liability [Roll Forward]      
Contract Liabilities, ending balance 3,072    
Successor      
Revenue from Contract with Customer [Abstract]      
Total contract liabilities 3,072 $ 3,072  
Change in Contract with Customer, Liability [Roll Forward]      
Contract Liabilities, ending balance $ 3,072