Quarterly report pursuant to Section 13 or 15(d)

Exit Activities (Detail)

v3.7.0.1
Exit Activities (Detail)
$ in Thousands
3 Months Ended 12 Months Ended
Mar. 31, 2017
USD ($)
Mar. 31, 2016
USD ($)
Dec. 31, 2016
Predecessor [Member]      
Restructuring Cost and Reserve [Line Items]      
Restructuring and Related Cost, Number of Positions Eliminated 10   53
Severance and Termination Benefits $ 400 $ 700  
Liabilities Subject to Compromise, Early Contract Termination Fees   400  
Payments for Restructuring   500  
Restructuring Reserve, Accretion of Obligation   $ 175  
Successor [Member]      
Restructuring Cost and Reserve [Line Items]      
Severance and Termination Adjustment 100    
Restructuring Reserve, Accretion of Obligation $ 0