Borrowings (Additional Information) (Detail) (USD $)	3 Months Ended
	Mar. 31, 2015 covenant	Dec. 31, 2014	Dec. 31, 2011
Line of Credit Facility [Line Items]
Revolving facility principal amount	$ 700,000,000.0
Revolving facility expiration date	Jun. 27, 2016
Notes payable and current portion of long-term borrowings	908,213,000	863,952,000
Number of financial covenants	2
2.58% Senior Euro Notes, due June 2015
Line of Credit Facility [Line Items]
Stated interest rate	2.58%
4.5% Senior Notes, due December 2020
Line of Credit Facility [Line Items]
Stated interest rate	4.50%		4.50%
4.2% Senior Notes, due December 2021
Line of Credit Facility [Line Items]
Stated interest rate	4.20%		4.20%
Minimum | Other borrowings
Line of Credit Facility [Line Items]
Stated interest rate	0.20%
Minimum | 2.58% Senior Euro Notes, due June 2015
Line of Credit Facility [Line Items]
Interest coverage ratio	3.0
Maximum | Other borrowings
Line of Credit Facility [Line Items]
Stated interest rate	1.30%
Letters Of Credit
Line of Credit Facility [Line Items]
Revolving facility principal amount	75,000,000.0
Swing line Loans
Line of Credit Facility [Line Items]
Revolving facility principal amount	25,000,000.0
Revolving Facility
Line of Credit Facility [Line Items]
Applicable margin over LIBOR	1.05%
Annual credit facility fee basis point rate spread over LIBOR	0.20%
Current borrowings under revolving facility	170,000,000	115,000,000
Outstanding letters of credit	7,100,000
Revolving Facility, amount available to borrow	522,900,000
Revolving Facility | Minimum
Line of Credit Facility [Line Items]
Applicable margin over LIBOR	0.875%
Revolving Facility | Maximum
Line of Credit Facility [Line Items]
Applicable margin over LIBOR	1.70%
Leverage ratio	3.25
Other borrowings
Line of Credit Facility [Line Items]
Other borrowings	$ 1,944,000	$ 2,170,000