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Long-Term Debt - Additional Information (Detail) (USD $)
3 Months Ended 3 Months Ended 3 Months Ended 3 Months Ended 3 Months Ended
Mar. 31, 2013
Mar. 31, 2012
Dec. 31, 2012
Jun. 27, 2011
Incremental Credit Facility
Jun. 27, 2011
Term Loan A
Mar. 31, 2013
Term Loan A
Principal Repayment Percentage in Each of First Two Years from Issuance [Member]
Mar. 31, 2013
Term Loan A
Principal Repayment Percentage in Third Year from Issuance [Member]
Mar. 31, 2013
Term Loan A
Principal Repayment Percentage in Fourth Year from Issuance [Member]
Mar. 31, 2013
Term Loan A
Principal Repayment Percentage in Fifth Year from Issuance [Member]
Mar. 31, 2013
Term Loan A
Principal repayable at maturity
Mar. 31, 2013
Senior Secured Revolving Credit Facility
Jun. 27, 2011
Senior Secured Revolving Credit Facility
Jun. 27, 2011
Senior Secured Revolving Credit Facility
Foreign Denominated
Jun. 27, 2011
Senior Secured Revolving Credit Facility
Letter of Credit
Jun. 27, 2011
Senior Secured Revolving Credit Facility
Revolving Line of Credit
Mar. 31, 2013
Senior Secured Credit Facility
Jun. 27, 2011
Senior Secured Credit Facility
Mar. 31, 2013
Senior Secured Credit Facility
Base Rate
Mar. 31, 2013
Senior Secured Credit Facility
Euro Dollar Rate
Mar. 31, 2013
Senior Secured Revolving Credit Facility
Dec. 31, 2012
Senior Secured Revolving Credit Facility
Jan. 28, 2011
Senior Secured Revolving Credit Facility
Mar. 31, 2013
Senior Notes due 2021
Mar. 31, 2012
Senior Notes due 2021
Dec. 31, 2012
Senior Notes due 2021
Jan. 28, 2011
Senior Notes due 2021
Senior Notes Redeemable Prior to February 1, 2014 [Member]
Jan. 28, 2011
Senior Notes due 2021
Senior Notes Redeemable Prior To February 1, 2016 Member
Jan. 28, 2011
Senior Notes due 2021
Senior Notes Redeemable Upon Change in Control [Member]
Mar. 31, 2013
Senior Notes due 2033
Debt Outstanding [Line Items]                                                          
Principal Redeemable with Equity Offering Proceeds                                                   35.00%      
Debt Instrument, Redemption Price                                                     100.00% 101.00%  
Cross-Default Accelerated Indebtedness Amount                               $ 50,000,000             $ 50,000,000           $ 25,000,000
Debt Instrument, Interest Rate, Stated Percentage                                             6.625%   6.625%        
Debt Instrument, Face Amount         300,000,000                                                
Principal repayment, percentage           5.00% 10.00% 15.00% 11.25% 53.75%                                      
Line of credit, aggregate principal amount                       100,000,000 15,000,000 50,000,000 20,000,000                            
Line of credit, outstanding amount                     42,600,000 50,000,000                                  
Line of credit, incremental facility       150,000,000                                                  
Repayments of long-term debt 3,750,000 3,750,000                                                      
Standby letters of credit outstanding 7,400,000                                                        
Senior secured debt, applicable margin rate                                   0.75% 1.75%                    
Senior secured debt, maximum applicable margin rate                                   1.00% 2.00%                    
Percentage of capital stock of foreign subsidiaries pledged as a guarantee                                 65.00%                        
Mandatory principal prepayments from aggregate net cash proceeds from certain asset sales, casualty events or condemnation recoveries, percentage                                           100.00%              
Long-term Debt 583,811,000   587,561,000                                 50,000,000 50,000,000   260,000,000   260,000,000        
Capitalized debt issuance costs                                               $ 5,100,000