XML 82 R68.htm IDEA: XBRL DOCUMENT v3.10.0.1
Long Term Debt - Senior Notes - Additional Information (Detail)
 12 Months Ended
Mar. 27, 2018
Jan. 19, 2018
USD ($)
Jun. 14, 2012
USD ($)
Covenant
Oct. 05, 2010
USD ($)
Covenant
Dec. 31, 2018
USD ($)
Dec. 31, 2017
USD ($)
Dec. 31, 2016
USD ($)
Sep. 27, 2012
USD ($)
Debt Instrument [Line Items]                
Repayment of borrowings         $ 347,000,000 $ 331,000,000 $ 200,500,000  
Proceeds from borrowings, before offering expenses         79,000,000 599,000,000 200,500,000  
Interest expense related to amortization of debt issuance costs         $ 2,000,000 $ 2,600,000 4,100,000  
Revolving Credit Facility                
Debt Instrument [Line Items]                
Repayment of borrowings   $ 239,000,000            
4.97% Series A Senior Notes, Due October 5th 2020                
Debt Instrument [Line Items]                
Debt maturity date       Oct. 05, 2020        
Long-term debt, aggregate principal amount       $ 300,000,000        
Debt interest rate       4.97%        
Semi-annual interest payment, first payment date         April 5      
Semi-annual interest payment, second payment date         October 5      
Notes issuance date       Oct. 05, 2010        
Description of the prepayment terms         Notes are prepayable at the Company’s option, in whole or in part, provided that in the case of a partial prepayment, prepayment must be in an amount not less than 5% of the aggregate principal amount of the notes then outstanding, at any time and from time to time at 100% of the principal amount prepaid, plus accrued and unpaid interest to the prepayment date, plus a “make-whole” premium as specified in the note purchase agreements. The Company must offer to prepay the notes upon the occurrence of any change of control. In addition, the Company must offer to prepay the notes upon the occurrence of certain asset dispositions if the proceeds therefrom are not timely reinvested in productive assets. If any offer to prepay is accepted, the purchase price of each prepaid note is 100% of the principal amount thereof, plus accrued and unpaid interest thereon to the prepayment date.      
Debt instrument, redemption percentage       100.00%        
Description of the acceptance terms         If any offer to prepay is accepted, the purchase price of each prepaid note is 100% of the principal amount thereof, plus accrued and unpaid interest thereon to the prepayment date      
Acceptance terms, percent of principal before accrued and unpaid interest       100.00%        
Number of compliance covenants | Covenant       2        
Note purchase agreement, financial covenant description         The Company must not permit its debt to capitalization ratio to exceed 50% at any time. The note purchase agreements generally define the debt to capitalization ratio as the ratio of (a) total borrowed money indebtedness to (b) the sum of such indebtedness plus consolidated net worth, with consolidated net worth determined as of the last day of the most recently ended fiscal quarter. The Company also must not permit its interest coverage ratio as of the last day of a fiscal quarter to be less than 2.50 to 1.00. The note purchase agreements generally define the interest coverage ratio as the ratio of EBITDA for the four prior fiscal quarters to interest charges for the same period. The Company was in compliance with these covenants at December 31, 2018.      
Debt issuance costs       $ 1,900,000        
4.97% Series A Senior Notes, Due October 5th 2020 | Minimum                
Debt Instrument [Line Items]                
Debt instrument, prepayment percentage of aggregate principal amount       5.00%        
Interest coverage ratio that the Company must exceed on the last day of the fiscal quarter       2.50%        
4.97% Series A Senior Notes, Due October 5th 2020 | Maximum                
Debt Instrument [Line Items]                
Debt to capitalization ratio, percentage the Company must not exceed at any time       50.00%        
4.27% Series B Senior Notes, Due June 14th 2022                
Debt Instrument [Line Items]                
Debt maturity date     Jun. 14, 2022          
Long-term debt, aggregate principal amount     $ 300,000,000          
Debt interest rate     4.27%          
Semi-annual interest payment, first payment date         April 5      
Semi-annual interest payment, second payment date         October 5      
Notes issuance date     Jun. 14, 2012          
Description of the prepayment terms         Notes are prepayable at the Company’s option, in whole or in part, provided that in the case of a partial prepayment, prepayment must be in an amount not less than 5% of the aggregate principal amount of the notes then outstanding, at any time and from time to time at 100% of the principal amount prepaid, plus accrued and unpaid interest to the prepayment date, plus a “make-whole” premium as specified in the note purchase agreements. The Company must offer to prepay the notes upon the occurrence of any change of control. In addition, the Company must offer to prepay the notes upon the occurrence of certain asset dispositions if the proceeds therefrom are not timely reinvested in productive assets. If any offer to prepay is accepted, the purchase price of each prepaid note is 100% of the principal amount thereof, plus accrued and unpaid interest thereon to the prepayment date.      
Debt instrument, redemption percentage     100.00%          
Description of the acceptance terms         If any offer to prepay is accepted, the purchase price of each prepaid note is 100% of the principal amount thereof, plus accrued and unpaid interest thereon to the prepayment date      
Acceptance terms, percent of principal before accrued and unpaid interest     100.00%          
Number of compliance covenants | Covenant     2          
Note purchase agreement, financial covenant description         The Company must not permit its debt to capitalization ratio to exceed 50% at any time. The note purchase agreements generally define the debt to capitalization ratio as the ratio of (a) total borrowed money indebtedness to (b) the sum of such indebtedness plus consolidated net worth, with consolidated net worth determined as of the last day of the most recently ended fiscal quarter. The Company also must not permit its interest coverage ratio as of the last day of a fiscal quarter to be less than 2.50 to 1.00. The note purchase agreements generally define the interest coverage ratio as the ratio of EBITDA for the four prior fiscal quarters to interest charges for the same period. The Company was in compliance with these covenants at December 31, 2018.      
Debt issuance costs     $ 1,600,000          
4.27% Series B Senior Notes, Due June 14th 2022 | Minimum                
Debt Instrument [Line Items]                
Debt instrument, prepayment percentage of aggregate principal amount     5.00%          
Interest coverage ratio that the Company must exceed on the last day of the fiscal quarter     2.50%          
4.27% Series B Senior Notes, Due June 14th 2022 | Maximum                
Debt Instrument [Line Items]                
Debt to capitalization ratio, percentage the Company must not exceed at any time     50.00%          
3.95% Senior Notes Due 2028                
Debt Instrument [Line Items]                
Debt maturity date   Feb. 01, 2028            
Long-term debt, aggregate principal amount   $ 525,000,000            
Debt interest rate   3.95%     3.95%      
Debt instrument, redemption percentage   100.00%            
Proceeds from borrowings, before offering expenses   $ 521,000,000            
Debt payment term         The Company pays interest on the 2028 Notes on February 1 and August 1 of each year.      
Debt instrument redemption description         The Company, at its option, may redeem the Notes in whole or in part, at any time or from time to time at a redemption price equal to 100% of the principal amount of such 2028 Notes to be redeemed, plus accrued and unpaid interest, if any, on those 2028 Notes to the redemption date, plus a make-whole premium. Additionally, commencing on November 1, 2027, the Company, at its option, may redeem the 2028 Notes in whole or in part, at a redemption price equal to 100% of the principal amount of the 2028 Notes to be redeemed, plus accrued and unpaid interest, if any, on those 2028 Notes to the redemption date.      
Debt instrument redemption upon the occurrence of change of control, description         Upon the occurrence of a change of control, as defined in the indenture, each holder of the 2028 Notes may require the Company to purchase all or a portion of such holder’s 2028 Notes at a price equal to 101% of their principal amount, plus accrued and unpaid interest, if any, to, but excluding, the repurchase date.      
Redemption price percentage of principal amount of debt instrument on change of control   101.00%            
Debt issuance costs   $ 1,600,000            
Credit Agreement                
Debt Instrument [Line Items]                
Debt issuance costs               $ 4,600,000
Credit Agreement | Revolving Credit Facility                
Debt Instrument [Line Items]                
Debt maturity date Mar. 27, 2023              
Credit Agreement | Maximum                
Debt Instrument [Line Items]                
Debt to capitalization ratio, percentage the Company must not exceed at any time         50.00%      
Previous Term Loan                
Debt Instrument [Line Items]                
Early termination of term loan agreements             $ 1,400,000  
Previous Credit Agreement                
Debt Instrument [Line Items]                
Interest expense related to amortization of debt issuance costs         $ 317,000