XML 62 R49.htm IDEA: XBRL DOCUMENT v3.10.0.1
Financial Instruments - Carrying Amount and Estimated Fair Values of Financial Instruments (Detail) - USD ($)
$ in Thousands
Jun. 30, 2018
Dec. 31, 2017
Jun. 30, 2017
Dec. 31, 2016
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]        
Cash and cash equivalents $ 322,423 $ 368,046 $ 491,386 $ 323,992
Estimate of Fair Value Measurement [Member]        
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]        
Cash and cash equivalents 322,423 368,046    
Credit facilities and bank overdrafts [1] 115,078 7,993    
Estimate of Fair Value Measurement [Member] | Senior Notes 2007        
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]        
Senior Notes, Noncurrent [2] 278,720 293,232    
Estimate of Fair Value Measurement [Member] | Senior Notes 2013        
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]        
Senior Notes, Noncurrent [2] 294,645 304,219    
Estimate of Fair Value Measurement [Member] | Senior Notes 2016        
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]        
Senior Notes, Noncurrent [2] 599,111 627,782    
Estimate of Fair Value Measurement [Member] | Senior Notes 2017        
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]        
Senior Notes, Noncurrent [2] 452,689 525,906    
Reported Value Measurement [Member]        
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]        
Credit facilities and bank overdrafts [1] 115,078 7,993    
Reported Value Measurement [Member] | Senior Notes 2007        
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]        
Senior Notes, Noncurrent [2] 250,000 250,000    
Reported Value Measurement [Member] | Senior Notes 2013        
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]        
Senior Notes, Noncurrent [2] 300,000 300,000    
Reported Value Measurement [Member] | Senior Notes 2016        
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]        
Senior Notes, Noncurrent [2] 577,700 594,400    
Reported Value Measurement [Member] | Senior Notes 2017        
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]        
Senior Notes, Noncurrent [2] $ 500,000 $ 500,000    
[1] The carrying amount approximates fair value as the interest rate is reset frequently based on current market rates as well as the short maturity of those instruments.
[2] The fair value of the Company's long-term debt was calculated using discounted cash flows applying current interest rates and current credit spreads based on its own credit risk.