XML 33 R52.htm IDEA: XBRL DOCUMENT v2.4.0.8
Debt - Additional Information (Detail) (USD $)
 12 Months Ended 12 Months Ended 1 Months Ended 12 Months Ended 0 Months Ended 12 Months Ended 1 Months Ended 12 Months Ended 1 Months Ended 1 Months Ended 12 Months Ended 12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2013
Loan Agreement
Nov. 27, 2012
Loan Agreement
Dec. 31, 2013
Convertible Senior Notes
Apr. 25, 2013
Convertible Senior Notes
Dec. 31, 2013
Amended and Restated Credit Agreement
Apr. 23, 2012
Unsecured Debt
Convertible Senior Notes
Dec. 31, 2013
Unsecured Debt
Convertible Senior Notes
Dec. 31, 2013
Unsecured Debt
Convertible Senior Notes
Scenario 1
Dec. 31, 2013
Unsecured Debt
Convertible Senior Notes
Scenario 2
Dec. 31, 2013
Amended Credit Agreement
Dec. 31, 2012
Amended Credit Agreement
Apr. 25, 2013
Amended Credit Agreement
Dec. 31, 2013
Amended Credit Agreement
Loan Agreement
Dec. 31, 2012
Amended Credit Agreement
Loan Agreement
May 08, 2012
Revolving Credit Facility
Dec. 31, 2013
Revolving Credit Facility
Dec. 31, 2013
Revolving Credit Facility
Amended and Restated Credit Agreement
Dec. 31, 2013
Revolving Credit Facility
Amended and Restated Credit Agreement
Option to increase subject to certain conditions
Dec. 31, 2013
Revolving Credit Facility
Amended and Restated Credit Agreement
Swing Line Loan
Apr. 25, 2013
Term Loan Credit Facilty
Dec. 31, 2012
Term Loan Credit Facilty
Dec. 31, 2013
Term Loan Credit Facilty
Apr. 25, 2013
Term Loan Credit Facilty
LIBOR
Apr. 25, 2013
Term Loan Credit Facilty
Base Rate
May 08, 2012
Term Loan Credit Facilty
Senior Secured Credit Facility
May 08, 2012
Term Loan Credit Facilty
Incremental Senior Credit Facility
Apr. 25, 2013
Term Loan Credit Facilty
Amended Credit Agreement
Dec. 31, 2013
Letter Of Credit Subfacility
Revolving Credit Facility
Amended and Restated Credit Agreement
Dec. 31, 2013
Minimum
Unsecured Debt
Convertible Senior Notes
Scenario 1
Dec. 31, 2013
Minimum
Revolving Credit Facility
Amended and Restated Credit Agreement
Dec. 31, 2013
Minimum
Revolving Credit Facility
Amended and Restated Credit Agreement
LIBOR
Dec. 31, 2013
Minimum
Revolving Credit Facility
Amended and Restated Credit Agreement
Base Rate
Dec. 31, 2013
Minimum
Term Loan Credit Facilty
Through September 30, 2013
Dec. 31, 2013
Minimum
Term Loan Credit Facilty
Thereafter through September 30, 2015
Dec. 31, 2013
Minimum
Term Loan Credit Facilty
Thereafter
Dec. 31, 2013
Maximum
Revolving Credit Facility
Amended and Restated Credit Agreement
Dec. 31, 2013
Maximum
Revolving Credit Facility
Amended and Restated Credit Agreement
LIBOR
Dec. 31, 2013
Maximum
Revolving Credit Facility
Amended and Restated Credit Agreement
Base Rate
Dec. 31, 2013
Maximum
Term Loan Credit Facilty
Through September 30, 2013
Dec. 31, 2013
Maximum
Term Loan Credit Facilty
Thereafter through September 30, 2015
Dec. 31, 2013
Maximum
Term Loan Credit Facilty
Thereafter
Debt Disclosure [Line Items]                                                                                        
Notes issued, due date             2018   2018                                                                      
Notes issued, aggregate principal amount $ 387,042,000 $ 450,250,000     $ 2,500,000 $ 150,000,000     $ 150,000,000             $ 62,800,000 $ 2,300,000             $ 297,750,000 $ 234,923,000                                      
Notes issued, interest rate         4.25%   3.375%   3.375%                                                                      
Notes issued, interest payment frequency                 semi-annually                                                                      
Notes initial conversion rate per 1,000 in principal amount                   85.4372                                                                    
Principal amount of notes conversation for 85.4372 shares of common stock                   1,000                                                                    
Notes initial conversion price $ 11.70                 $ 11.70                                                                    
Convertible notes, conversation date                   Nov. 01, 2017                                                                    
Number of trading days                                                               20 days                        
Number of consecutive trading days                     30 days 5 days                                                                
Last reported sale price of common stock as percentage of conversion price                                                               130.00%                        
Convertible senior notes, trading price per $1,000 principal amount of notes as percentage of the product of the last reported sale price of common stock and the conversion rate                       98.00%                                                                
Proceeds from notes issued 0 292,500,000 0             145,100,000                                                                    
Estimated implied interest rate                   7.00%                                                                    
Fair value of liability component upon issuance                   123,800,000                                                                    
Difference between cash proceeds before offering expenses and the estimated fair value of liability component                   21,700,000                                                                    
Proceeds from issuance of convertible senior notes                   145,500,000                                                                    
Credit facility, maturity date                                       May 08, 2017     May 08, 2019                                          
Credit facility, borrowing capacity                                       150,000,000 200,000,000 10,000,000             75,000,000   15,000,000                          
Credit facility, interest rate above basis                                                   3.50% 2.50%             1.75% 0.75%         2.25% 1.25%      
Credit facility, unused line fee monthly payment                                       0.375%                                                
Required minimum fixed charge coverage ratio when availability under the Revolver is less than 12.5% of the total revolving commitment                                                                             1.1          
Excess availability as a percentage of total revolving commitment below which minimum fixed charge coverage ratio maintained                                       12.50%                                                
Availability percentage threshold of total revolving commitment below which amounts in deposit accounts will be transferred daily in to blocked account                                       15.00%                                                
Line of Credit Facility, Remaining Borrowing Capacity                                     254,300,000                                                  
Line of Credit Facility, Amount Outstanding                                       25,000,000               300,000,000   297,000,000                            
Interest Paid                         14,900,000 10,900,000                                                            
Long-term debt 358,890,000 416,849,000   2,100,000                     277,000,000                                                          
Interest coverage ratio                                                 1.00%                                      
Senior leverage ratio                                                                 1.0     1.0 1.0 1.0       4.5 4.0 3.5
Line of credit facility potential term extension period                                             91 days                                          
Debt amortization percentage                                                 1.00%                                      
Proceeds from Sale of Productive Assets                                               1,000,000                                        
Current portion of long-term debt 3,245,000 3,381,000   500,000                 2,800,000                                                              
Debt issuance costs paid 981,000 5,134,000 1,989,000                   8,500,000                                                              
Interest expense 26,308,000 21,724,000 4,136,000                   900,000 600,000                                                            
Line of credit facility, decrease, repayments 1,166,000 271,015,000 838,705,000                             51,000,000                       20,000,000                            
Percentage of tranche loan amount on equal quarterly installments                                             0.25%                                          
Senior secured leverage ratio               0.9:1.0                                                                        
Extinguishment of debt                         60,000,000                                                              
Accelerated amortization 4,643,000 2,972,000 0                   1,400,000                                                              
Debt Conversion, Converted Instrument, Amount                   $ 8,000,000