Accounts Receivable Securitization Programs - Additional Information (Detail)	3 Months Ended		9 Months Ended					3 Months Ended	9 Months Ended			9 Months Ended
	Sep. 30, 2014 USD ($)	Sep. 30, 2013 USD ($)	Sep. 30, 2014 USD ($)	Sep. 30, 2013 USD ($)	Dec. 31, 2013 USD ($)	Sep. 30, 2014 U.S.program USD ($)	Sep. 30, 2014 European program EUR (€)	Sep. 30, 2014 U.S. Accounts Receivable Securitization Program [Member] USD ($)	Sep. 30, 2014 U.S. Accounts Receivable Securitization Program [Member] USD ($) Bank	Sep. 30, 2014 U.S. Accounts Receivable Securitization Program [Member] Maximum [Member] USD ($)	Sep. 30, 2014 U.S. Accounts Receivable Securitization Program [Member] Minimum [Member] USD ($)	Sep. 30, 2014 European Accounts Receivable Securitization Program [Member] USD ($) Bank	Sep. 30, 2014 European Accounts Receivable Securitization Program [Member] EUR (€) Bank	Sep. 30, 2014 U.S. and European Accounts Receivable Securitization Programs [Member] USD ($)
Servicing Assets at Fair Value [Line Items]
Number of banks involved in sale of fractional ownership interest of accounts receivable									2			2	2
Maximum purchase limit for receivable interests under accounts receivable securitization program								$ 100,000,000	$ 100,000,000			$ 120,000,000	€ 95,000,000
Level of eligible assets available under accounts receivable securitization program								lower than $100 million	less than $100 million
Amount available for accounts receivable securitization program					0			87,000,000	87,000,000	125,000,000	100,000,000	120,000,000	95,000,000
Accounts receivable expiration date									2014-09			2015-02	2015-02
Amount utilized under accounts receivable securitization program	87,000,000		87,000,000			87,000,000	0	88,000,000	88,000,000			120,000,000	95,000,000
Interest expense	$ 69,700,000	$ 88,900,000	$ 222,100,000	$ 269,400,000										$ 2,000,000
Weighted average interest rate of borrowings	0.89%		0.89%