Description of Business, Basis of Presentation and Summary of Significant Accounting Policies - Additional Information (Detail) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Organization And Summary Of Significant Accounting Policies [Line Items]
Measurement period used to determine the long term expected return plan assets	5 years
Share-based compensation, vesting period	3 years
LIFO inventory, percentage of total	15.10%	15.30%
LIFO inventory reserve amount recorded	$ 9.3	$ 9.2
Short-term investments	5.4	112.9
Maturities of time deposits, description	original maturity exceeding three months at the time of purchase. These investments mature within four months of the balance sheet date and have been presented in other current assets as short-term investments on the Consolidated Balance Sheet
Other employee benefit-related assets	93.0	93.6
Life Insurance, Corporate or Bank Owned, Change in Value	4.6	3.7	1.3
Deferred Compensation Liability, Current and Noncurrent	14.4	14.9
Acquisition measurement period	12 months
Minimum [Member] | Building and improvements [Member]
Organization And Summary Of Significant Accounting Policies [Line Items]
Plant, property and equipment estimated useful life	5 years
Minimum [Member] | Machinery and equipment [Member]
Organization And Summary Of Significant Accounting Policies [Line Items]
Plant, property and equipment estimated useful life	2 years
Minimum [Member] | Furniture and office equipment [Member]
Organization And Summary Of Significant Accounting Policies [Line Items]
Plant, property and equipment estimated useful life	3 years
Minimum [Member] | Other plant, property and equipment [Member]
Organization And Summary Of Significant Accounting Policies [Line Items]
Plant, property and equipment estimated useful life	5 years
Minimum [Member] | Software [Member]
Organization And Summary Of Significant Accounting Policies [Line Items]
Capitalized Software Estimated Useful Life Range	3 years
Minimum [Member] | Intangible assets with a finite life amortized on a straight-line basis [Member]
Organization And Summary Of Significant Accounting Policies [Line Items]
Capitalized Software Estimated Useful Life Range	10 years
Maximum [Member] | Building and improvements [Member]
Organization And Summary Of Significant Accounting Policies [Line Items]
Plant, property and equipment estimated useful life	40 years
Maximum [Member] | Machinery and equipment [Member]
Organization And Summary Of Significant Accounting Policies [Line Items]
Plant, property and equipment estimated useful life	10 years
Maximum [Member] | Furniture and office equipment [Member]
Organization And Summary Of Significant Accounting Policies [Line Items]
Plant, property and equipment estimated useful life	7 years
Maximum [Member] | Other plant, property and equipment [Member]
Organization And Summary Of Significant Accounting Policies [Line Items]
Plant, property and equipment estimated useful life	40 years
Maximum [Member] | Software [Member]
Organization And Summary Of Significant Accounting Policies [Line Items]
Capitalized Software Estimated Useful Life Range	7 years
Maximum [Member] | Intangible assets with a finite life amortized on a straight-line basis [Member]
Organization And Summary Of Significant Accounting Policies [Line Items]
Capitalized Software Estimated Useful Life Range	20 years
Foreign Exchange Contract [Member]
Organization And Summary Of Significant Accounting Policies [Line Items]
Derivative, Notional Amount	5.4	13.1
Interest Rate Swap [Member]
Organization And Summary Of Significant Accounting Policies [Line Items]
Derivative, Notional Amount	$ 3.3	$ 11.9
Customer Concentration Risk [Member] | Accounts Receivable [Member]
Organization And Summary Of Significant Accounting Policies [Line Items]
Concentration Risk, Percentage	10.00%