Annual report pursuant to Section 13 and 15(d)

Income Taxes Reconciliation (Detail)

v3.10.0.1
Income Taxes Reconciliation (Detail) - USD ($)
$ in Thousands
4 Months Ended 8 Months Ended 12 Months Ended
Dec. 31, 2016
Sep. 12, 2016
Dec. 31, 2018
Dec. 31, 2017
Income Tax Rate Reconciliation [Line Items]        
Computed at federal statutory rate     $ 9,700  
State income taxes, net of federal income tax benefit     (1,400)  
Change in valuation allowance     (24,400)  
Effective Income Tax Rate Reconciliation, Reorganization Adjustments, Amount     10,800  
Other, net     300  
Income tax benefit     $ 4,900  
Effective Income Tax Rate Reconciliation, Percent     0.20%  
Computed at federal statutory rate     3500.00%  
Predecessor [Member]        
Income Tax Rate Reconciliation [Line Items]        
Computed at federal statutory rate   $ 369,111    
State income taxes, net of federal income tax benefit   1,989    
Change in valuation allowance   (384,692)    
Effective Income Tax Rate Reconciliation, Change in Enacted Tax Rate, Amount   0    
Effective Income Tax Rate Reconciliation, Reorganization Adjustments, Amount   13,572    
Other, net   20    
Income tax benefit   $ 0    
Effective Income Tax Rate Reconciliation, Percent   0.00%    
Computed at federal statutory rate   35.00%    
State income taxes, net of federal income tax benefit   0.20%    
Change in valuation allowance   (36.50%)    
Effective Income Tax Rate Reconciliation, Effect of rate change on valuation allowance, Amount   $ 0    
Effective Income Tax Rate Reconciliation, Effect of rate change on valuation allowance, Percent   0.00%    
Effect of rate change   0.00%    
Reorganization adjustments   1.30%    
Other, net   0.00%    
Successor [Member]        
Income Tax Rate Reconciliation [Line Items]        
Computed at federal statutory rate $ (1,854)   $ 47,315 $ 9,701
State income taxes, net of federal income tax benefit 197   1,743 (1,383)
Change in valuation allowance 1,657   (48,820) (24,353)
Effective Income Tax Rate Reconciliation, Change in Enacted Tax Rate, Amount 0   0 86,612
Effective Income Tax Rate Reconciliation, Reorganization Adjustments, Amount 0   0 10,760
Other, net 0   285 332
Income tax benefit $ 0   $ 523 $ (4,943)
Effective Income Tax Rate Reconciliation, Percent 0.00%   0.20% (17.80%)
Computed at federal statutory rate 35.00%   21.00% 35.00%
State income taxes, net of federal income tax benefit (3.70%)   0.00% (5.00%)
Change in valuation allowance (31.30%)   (21.70%) (87.80%)
Effective Income Tax Rate Reconciliation, Effect of rate change on valuation allowance, Amount $ 0   $ 0 $ (86,612)
Effective Income Tax Rate Reconciliation, Effect of rate change on valuation allowance, Percent 0.00%   0.00% (312.50%)
Effect of rate change 0.00%   0.00% 0.00%
Reorganization adjustments 0.00%   0.00% 38.80%
Other, net 0.00%   0.00% 1.20%