FINANCING ARRANGEMENTS - ADDITIONAL INFORMATION (Detail)		12 Months Ended
	Dec. 11, 2015 USD ($)	Dec. 31, 2015 USD ($) bank	Aug. 15, 2016 EUR (€)	Aug. 15, 2016 CHF (SFr)	Feb. 19, 2016 EUR (€)	Dec. 11, 2015 EUR (€)	Dec. 11, 2015 CHF (SFr)	Feb. 28, 2015 USD ($)	Dec. 31, 2014 USD ($)
Debt Instrument [Line Items]
Add: Current portion of long-term debt		$ 9,200,000							$ 109,800,000
Floating rate senior term loan		$ 1,153,500,000							1,262,700,000
Debt-to-capital ratio		0.60
Operating income less depreciation and amortization-to-interest ratio		3.0
Total unused lines of credit									548,900,000
Private Placement
Debt Instrument [Line Items]
Add: Current portion of long-term debt								$ 100,000,000
Floating rate senior term loan		$ 75,000,000
Commercial Paper
Debt Instrument [Line Items]
Average amount of short-term debt outstanding during the year		46,400,000
Line of Credit | Revolving Credit Facility
Debt Instrument [Line Items]
Credit facilities, maximum borrowing capacity		$ 500,000,000
Debt instrument term		5 years
Number of banks | bank		12
Line of Credit | Revolving Credit Facility | Credit Facility Agreement Through 2019
Debt Instrument [Line Items]
Credit facilities, maximum borrowing capacity		$ 500,000,000
Line of Credit | Revolving Credit Facility | Credit Facility Agreement Through 2020
Debt Instrument [Line Items]
Credit facilities, maximum borrowing capacity		452,000,000
Line of Credit | Commercial Paper
Debt Instrument [Line Items]
Credit facilities, maximum borrowing capacity		500,000,000
Term Loan Agreement
Debt Instrument [Line Items]
Debt instrument face amount		$ 175,000,000.0
Annual principal payment									8,800,000
Mandatory principal amortization due in each of the first six years		5.00%
Senior Notes | Fixed rate senior notes $450 million due August 2021
Debt Instrument [Line Items]
Debt instrument face amount	$ 450,000,000
Principal payment	153,900,000
Payment in excess of par excluding accrued interest	$ 8,000,000
Senior Notes | Private Placement Notes
Debt Instrument [Line Items]
Debt instrument face amount						€ 289,000,000	SFr 295,500,000.0
Weighted average interest rate	1.69%					1.69%	1.69%
Senior Notes | Series A Senior Notes
Debt Instrument [Line Items]
Debt instrument face amount | SFr							SFr 25,000,000
Weighted average interest rate	0.86%					0.86%	0.86%
Senior Notes | Series B Senior Notes
Debt Instrument [Line Items]
Debt instrument face amount | €						€ 30,000,000
Weighted average interest rate	2.05%					2.05%	2.05%
Senior Notes | Series C Senior Notes
Debt Instrument [Line Items]
Debt instrument face amount | €						€ 67,000,000
Weighted average interest rate	2.05%					2.05%	2.05%
Senior Notes | Series D Senior Notes
Debt Instrument [Line Items]
Debt instrument face amount | SFr							SFr 8,000,000
Weighted average interest rate	1.02%					1.02%	1.02%
Senior Notes | Series E Senior Notes
Debt Instrument [Line Items]
Debt instrument face amount | €						€ 15,000,000
Weighted average interest rate	2.24%					2.24%	2.24%
Senior Notes | Series F Senior Notes | Scenario, Forecast
Debt Instrument [Line Items]
Debt instrument face amount | €					€ 11,000,000
Weighted average interest rate					2.05%
Senior Notes | Series G Senior Notes | Scenario, Forecast
Debt Instrument [Line Items]
Debt instrument face amount | €					€ 15,000,000
Weighted average interest rate					2.05%
Senior Notes | Series H Senior Notes | Scenario, Forecast
Debt Instrument [Line Items]
Debt instrument face amount | €					€ 45,000,000
Weighted average interest rate					2.45%
Senior Notes | Series I Senior Notes | Scenario, Forecast
Debt Instrument [Line Items]
Debt instrument face amount | SFr				SFr 58,000,000
Weighted average interest rate			1.01%	1.01%
Senior Notes | Series J Senior Notes | Scenario, Forecast
Debt Instrument [Line Items]
Debt instrument face amount | €			€ 40,000,000
Weighted average interest rate			2.25%	2.25%
Senior Notes | Series K Senior Notes | Scenario, Forecast
Debt Instrument [Line Items]
Debt instrument face amount | €			€ 66,000,000
Weighted average interest rate			2.25%	2.25%
Senior Notes | Series L Senior Notes | Scenario, Forecast
Debt Instrument [Line Items]
Debt instrument face amount | SFr				SFr 140,000,000
Weighted average interest rate			1.17%	1.17%
Senior Notes | Series M Senior Notes | Scenario, Forecast
Debt Instrument [Line Items]
Debt instrument face amount | SFr				SFr 65,000,000
Weighted average interest rate			1.33%	1.33%
Private Placement Notes | U.S. dollar denominated notes due February 2016
Debt Instrument [Line Items]
Debt instrument face amount		$ 250,000,000							250,000,000
Floating rate senior term loan		$ 75,100,000							$ 175,700,000