Annual report pursuant to Section 13 and 15(d)

Long-Term Debt - Additional Information (Detail)

v3.3.1.900
Long-Term Debt - Additional Information (Detail) - USD ($)
9 Months Ended 12 Months Ended
Jan. 22, 2014
Sep. 30, 2015
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Jul. 30, 2013
Apr. 18, 2013
Debt Instrument [Line Items]              
Current portion of long-term debt     $ 0 $ 10,000,000      
Repayments of long-term debt     30,000,000 435,000,000 $ 175,000,000    
Debt issuance costs   $ 2,800,000          
Payments of debt issuance costs     $ 1,996,000 $ 7,630,000 $ 11,172,000    
Tender offer costs $ 25,800,000            
Secured Debt [Member]              
Debt Instrument [Line Items]              
Revolving loan outstanding $ 40,000,000            
7.50 % Senior Notes [Member]              
Debt Instrument [Line Items]              
Aggregate principal amount           $ 225,000,000  
Debt instrument fixed interest rate           7.50%  
Secured Debt [Member] | Goldman Term Loan [Member]              
Debt Instrument [Line Items]              
Aggregate principal amount             $ 125,000,000