Annual report pursuant to Section 13 and 15(d)

Long-Term Debt - Additional Information (Detail)

v3.7.0.1
Long-Term Debt - Additional Information (Detail) - USD ($)
1 Months Ended 12 Months Ended
Jun. 30, 2014
Sep. 30, 1997
Dec. 31, 2016
Dec. 31, 2015
Debt Instrument [Line Items]        
Junior Subordinated Debentures At Fair Value $ 131,141      
Trust Preferred Securities Issued Number   4,217,724    
Trust Preferred Securities Underlying Price $ 30.32      
Proceeds from (Repurchase of) Trust Preferred Securities   $ 3,261,000    
Interest Rate Junior Subordinated Debentures     11.60%  
Trust Preferred Securities Liquidation Amount Per Preferred Security     $ 25.00  
Trust Preferred Securities Issued   $ 105,446,000 $ 105,443,000  
Senior secured credit facility consisting of revolver and term loan     973,455,000 $ 1,004,819,000
Total Assets     1,781,636,000 1,844,999,000
Deferrals of distribution payments to holders of Trust Preferred Securities       0
Letter of credit commitments outstanding     5,559,000  
Remaining borrowing capacity     64,441,000  
Capitalized lease and other obligations     322,000 527,000
Liabilities and Equity     1,781,636,000 1,844,999,000
Trust Preferred Securities - Common [Domain]        
Debt Instrument [Line Items]        
Non-current assets - junior subordinated debentures     3,261,000  
6.375% Senior Notes        
Debt Instrument [Line Items]        
Debt Instrument, Face Amount $ 330,000,000   $ 330,000,000 $ 330,000,000
Interest rate on Senior Notes 6.375%   6.375% 6.375%
Senior Secured Credit Facility        
Debt Instrument [Line Items]        
Senior secured credit facility consisting of revolver and term loan $ 620,000,000      
Term Loan        
Debt Instrument [Line Items]        
Credit facility $ 550,000,000      
Maturity term of loan 7 years      
Adjusted interest rate       4.50%
Revolving Credit Facility        
Debt Instrument [Line Items]        
Revolving credit facility $ 70,000,000      
Maturity term of loan 5 years      
LIBOR | Term Loan        
Debt Instrument [Line Items]        
Debt instrument spread variable rate     3.50%  
LIBOR | Term Loan | Minimum        
Debt Instrument [Line Items]        
Debt instrument floor rate     1.00%  
LIBOR | Revolving Credit Facility        
Debt Instrument [Line Items]        
Debt instrument spread variable rate     3.25%  
Adjusted interest rate     3.95%  
Alternate Base Rate | Term Loan        
Debt Instrument [Line Items]        
Debt instrument spread variable rate     2.50%  
Alternate Base Rate | Term Loan | Minimum        
Debt Instrument [Line Items]        
Debt instrument floor rate     2.00%  
Base Rate | Revolving Credit Facility        
Debt Instrument [Line Items]        
Debt instrument spread variable rate     2.25%  
Revolving Credit Facility        
Debt Instrument [Line Items]        
Revolving credit facility     $ 0 $ 28,000,000
Junior Subordinated Debentures        
Debt Instrument [Line Items]        
Interest Expense, Debt     12,231,000  
Junior Subordinated Debentures - Preferred [Domain]        
Debt Instrument [Line Items]        
Debt Instrument, Unamortized Premium, Current     22,437  
Debt Instrument, Unamortized Premium     19,936,000 $ 21,003,000
Trust Preferred Securities [Member]        
Debt Instrument [Line Items]        
Liabilities, Noncurrent     125,379,000  
Non-current assets - junior subordinated debentures     125,379,000  
Common Trust Securities [Member]        
Debt Instrument [Line Items]        
Liabilities, Noncurrent     3,261,000  
Trust Securities [Member]        
Debt Instrument [Line Items]        
Total Assets     128,640,000  
Liabilities and Equity     $ 128,640,000