Description of Business, Basis of Presentation and Summary of Significant Accounting Policies - Additional Information (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Organization And Summary Of Significant Accounting Policies [Line Items]
Restricted Cash and Cash Equivalents	$ 1.0	$ 1.2	$ 1.2	$ 1.2
Measurement period used to determine the long term expected return plan assets	5 years
LIFO inventory, percentage of total	13.90%	12.10%
LIFO inventory reserve amount recorded	$ 11.0	$ 9.6
Maturities of time deposits, description	original maturity exceeding three months at the time of purchase, referred to as short-term time deposits, are classified as held-to-maturity and are recorded at amortized cost, which approximates fair value.
Short-term investments	$ 0.0	0.0
Investments in Corporate Owned Life Insurance	104.4	102.8
Gain from Corporate Owned Life Insurance	2.8	3.8	3.0
Corporate Owned Life Insurance Policy Redemption	1.2
Deferred Compensation Liability, Current and Noncurrent	$ 11.9	12.5
Acquisition measurement period	12 months
Foreign Currency Transaction Gain (Loss), before Tax	$ 1.2	$ 12.4	$ 1.0
Minimum [Member] | Software [Member]
Organization And Summary Of Significant Accounting Policies [Line Items]
Property, Plant and Equipment, Useful Life	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]
Finite-Lived Intangible Asset, Useful Life	10 years
Maximum [Member] | Software [Member]
Organization And Summary Of Significant Accounting Policies [Line Items]
Property, Plant and Equipment, Useful Life	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]
Finite-Lived Intangible Asset, Useful Life	20 years
Customer Concentration Risk [Member] | Accounts Receivable [Member]
Organization And Summary Of Significant Accounting Policies [Line Items]
Concentration Risk, Percentage	12.00%	11.00%