Quarterly report pursuant to Section 13 or 15(d)

Long-Term Debt - Additional Information (Detail)

v2.4.0.8
Long-Term Debt - Additional Information (Detail) (USD $)
0 Months Ended 3 Months Ended 0 Months Ended 1 Months Ended 3 Months Ended 3 Months Ended 0 Months Ended 3 Months Ended 0 Months Ended 0 Months Ended 0 Months Ended 1 Months Ended 3 Months Ended 3 Months Ended 0 Months Ended 3 Months Ended
Jan. 22, 2014
Mar. 31, 2014
Mar. 31, 2013
Dec. 31, 2013
Dec. 14, 2012
Jul. 30, 2013
Unsecured Debt [Member]
Mar. 31, 2014
Unsecured Debt [Member]
Dec. 14, 2012
Secured Debt [Member]
Mar. 31, 2014
Secured Debt [Member]
Jan. 22, 2014
Secured Debt [Member]
Mar. 31, 2014
Revolving Credit Facility [Member]
Dec. 31, 2013
Revolving Credit Facility [Member]
Mar. 31, 2014
6.75% Senior Notes, due July 2022 [Member]
Jan. 22, 2014
6.75% Senior Notes, due July 2022 [Member]
Dec. 31, 2013
6.75% Senior Notes, due July 2022 [Member]
Jan. 22, 2014
9.125% Senior Notes, due April 2018 [Member]
Jan. 07, 2014
9.125% Senior Notes, due April 2018 [Member]
Mar. 31, 2014
9.125% Senior Notes, due April 2018 [Member]
Dec. 31, 2013
9.125% Senior Notes, due April 2018 [Member]
Mar. 22, 2010
9.125% Senior Notes, due April 2018 [Member]
Apr. 03, 2014
9.125% Senior Notes, due April 2018 [Member]
Subsequent Event [Member]
Apr. 02, 2014
9.125% Senior Notes, due April 2018 [Member]
Subsequent Event [Member]
Mar. 31, 2014
7.50% Senior Notes, due August 2020 [Member]
Jan. 22, 2014
7.50% Senior Notes, due August 2020 [Member]
Dec. 31, 2013
7.50% Senior Notes, due August 2020 [Member]
Jul. 30, 2013
7.50% Senior Notes, due August 2020 [Member]
Mar. 22, 2010
9.625% Senior Notes due 2013 [Member]
Mar. 31, 2014
9.625% Senior Notes due 2013 [Member]
Mar. 22, 2010
Senior secured revolving credit facility (Revolver) [Member]
Apr. 30, 2012
9.125% Senior Notes, due April 2018 (Issued April 25, 2012) [Member]
Mar. 31, 2014
9.125% Senior Notes, due April 2018 (Issued April 25, 2012) [Member]
Apr. 25, 2012
9.125% Senior Notes, due April 2018 (Issued April 25, 2012) [Member]
Apr. 25, 2012
2.125% Convertible Senior Notes due July 2012 [Member]
Mar. 31, 2014
Term Note [Member]
Dec. 14, 2012
Term Note [Member]
Secured Debt [Member]
Mar. 31, 2014
Term Note Due December 2017 [Member]
Dec. 31, 2013
Term Note Due December 2017 [Member]
Dec. 14, 2012
Term Note Due December 2017 [Member]
Apr. 18, 2013
Secured Debt [Member]
Goldman Term Loan [Member]
Apr. 18, 2013
ITS [Member]
Mar. 31, 2014
ITS [Member]
Mar. 31, 2014
ITS [Member]
Term Note Due April 2018 [Member]
Jul. 30, 2013
ITS [Member]
Term Note Due April 2018 [Member]
Debt Instrument [Line Items]                                                                                      
Aggregate principal amount                           $ 360,000,000.0           $ 300,000,000.0           $ 225,000,000.0           $ 125,000,000.0             $ 125,000,000        
Percentage of notes guaranteed by restricted subsidiaries                         6.75% 6.75%       9.125% 9.125%       7.50%   7.50% 7.50%   9.625%         2.125%                 7.50%  
Tender Offer Price for Each 1000 Principal Amount                                   1,061.98                                                  
Increase in the amount of term loan or revolving credit facility           45,000,000   50,000,000                                                                      
Deferred acquisition costs                                                                                   5,100,000 5,500,000
Redemption amount percentage of principal                           35.00%                       35.00%                                  
Redemption price                                               106.75%   107.50%                                  
Redemption price after year three                           103.375%                       103.75%                                  
Redemption price afer year five                           101.00%                       101.00%                                  
Debt premium                                   3,700,000                                                  
Par value of senior notes                                                           104.00%                          
Repayments of debt                                                     225,000,000   42,000,000                            
Gross proceeds of aggregate principal amount additional issued                                                           130,000,000                          
Debt issuance costs   7,300,000                                                         7,600,000                   5,400,000    
Debt issuance cost, Net of amortization   7,100,000                                                                                  
Tender Offer Price per Note, Consent Payment                                 30.00                                                    
Payments of Debt Issuance Costs   7,273,000 307,000                         453,700,000                                                      
Senior secured credit facility               80,000,000.0                                                     50,000,000.0                
Proceeds from issuance of term note                                         9,600,000                                     225,000,000      
Payments of debt extinguishment costs   25,796,000 0                                                                                
Aggregate commitment amount         180,000,000.0                                                                            
Maturity of credit facility                     Dec. 14, 2017                                                                
Variation in applicable rate for LIBOR Rate Loan                     2.50%                                                                
Variation in applicable rate for LIBOR Rate Loan                     3.00%                                                                
Variation in applicable rate for Base Rate Loan                     1.50%                                                                
Variation in applicable rate for Base Rate Loan                     2.00%                                                                
Revolving loan outstanding             37,500,000     40,000,000 0 0                                                              
Repayments of long term debt   416,199,000 0                         416,200,000                                                      
Debt Instrument Accrued Interest                               11,700,000                                                      
Unsolicited Tender Offer Costs 25,800,000                                                                                    
Senior Notes                                           8,800,000                                          
Redemption Premium                                         400,000                                            
Interest Expense   12,039,000 10,006,000                                   400,000                                            
Letters of credit outstanding                     6,000,000 4,600,000                                                              
Long-term Debt   631,375,000   653,781,000                 360,000,000   0     8,875,000 428,781,000       225,000,000   225,000,000                     37,500,000 0 50,000,000       125,000,000  
Principal payments                                                                   $ 2,500,000                  
Base rate plus                 2.00%                                                                    
LIBOR plus                 3.00%