Quarterly report pursuant to Section 13 or 15(d)

Debt - Summary of Company's Current Debt Portfolio (Detail)

v3.19.1
Debt - Summary of Company's Current Debt Portfolio (Detail) - USD ($)
$ in Thousands
Mar. 31, 2019
Dec. 31, 2018
Debt Instrument [Line Items]    
Total debt $ 210,000 $ 585,000
Successor credit facility    
Debt Instrument [Line Items]    
Total principal 0 0
Successor term loan, due March 2024    
Debt Instrument [Line Items]    
Total principal 210,000 0
Predecessor 6.75% senior notes, due July 2022    
Debt Instrument [Line Items]    
Total principal 0 360,000
Predecessor 7.50% senior notes, due August 2020    
Debt Instrument [Line Items]    
Total principal 0 225,000
2015 Secured Credit Agreement    
Debt Instrument [Line Items]    
Total principal $ 0 $ 0