Watts Water (WTS) 10-Q 4 Nov 14 2014 Q3 Quarterly report Financial data

Document_and_Entity_Informatio

Document and Entity Information	9 Months Ended
	Sep. 28, 2014	Oct. 31, 2014	Oct. 31, 2014
		Class A common stock	Class B common stock
Entity Registrant Name	'WATTS WATER TECHNOLOGIES INC	'	'
Entity Central Index Key	'0000795403	'	'
Document Type	'10-Q	'	'
Document Period End Date	28-Sep-14	'	'
Amendment Flag	'false	'	'
Current Fiscal Year End Date	'--12-31	'	'
Entity Current Reporting Status	'Yes	'	'
Entity Filer Category	'Large Accelerated Filer	'	'
Entity Common Stock, Shares Outstanding	'	28,650,542	6,479,290
Document Fiscal Year Focus	'2014	'	'
Document Fiscal Period Focus	'Q3	'	'

CONSOLIDATED_BALANCE_SHEETS

CONSOLIDATED BALANCE SHEETS (USD $)	Sep. 28, 2014	Dec. 31, 2013
In Millions, unless otherwise specified
CURRENT ASSETS:	'	'
Cash and cash equivalents	$272.40	$267.90
Trade accounts receivable, less allowance for doubtful accounts of $10.6 million at September 28, 2014 and $9.7 million at December 31, 2013	223.4	212.9
Inventories, net:	'	'
Raw materials	111.6	111.3
Work in process	17.9	19.1
Finished goods	177.5	179.8
Total Inventories	307	310.2
Prepaid expenses and other assets	18.6	35
Deferred income taxes	26	29.8
Asset held for sale	1.2	1.3
Total Current Assets	848.6	857.1
PROPERTY, PLANT AND EQUIPMENT:	'	'
Property, plant and equipment, at cost	526.1	539.2
Accumulated depreciation	-324	-319.3
Property, plant and equipment, net	202.1	219.9
OTHER ASSETS:	'	'
Goodwill	492.8	514.8
Intangible assets, net	116.4	132.4
Deferred income taxes	4.8	3.8
Other, net	12	12.2
TOTAL ASSETS	1,676.70	1,740.20
CURRENT LIABILITIES:	'	'
Accounts payable	125.4	145.6
Accrued expenses and other liabilities	129.2	135.2
Accrued compensation and benefits	43.2	43.9
Current portion of long-term debt	2	2.2
Total Current Liabilities	299.8	326.9
LONG-TERM DEBT, NET OF CURRENT PORTION	303.7	305.5
DEFERRED INCOME TAXES	35.4	45.9
OTHER NONCURRENT LIABILITIES	67.7	59.8
STOCKHOLDERS' EQUITY:	'	'
Preferred Stock, $0.10 par value; 5,000,000 shares authorized; no shares issued or outstanding	'	'
Additional paid-in capital	493.1	473.5
Retained earnings	524.5	513.1
Accumulated other comprehensive (loss) income	-51	12
Total Stockholders' Equity	970.1	1,002.10
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY	1,676.70	1,740.20
Class A common stock	'	'
STOCKHOLDERS' EQUITY:	'	'
Common Stock	2.9	2.9
Class B common stock	'	'
STOCKHOLDERS' EQUITY:	'	'
Common Stock	$0.60	$0.60

CONSOLIDATED_BALANCE_SHEETS_Pa

CONSOLIDATED BALANCE SHEETS (Parenthetical) (USD $)	Sep. 28, 2014	Dec. 31, 2013
In Millions, except Share data, unless otherwise specified
Trade accounts receivable, allowance for doubtful accounts (in dollars)	$10.60	$9.70
Preferred Stock, par value (in dollars per share)	$0.10	$0.10
Preferred Stock, shares authorized	5,000,000	5,000,000
Preferred Stock, shares issued	0	0
Preferred Stock, shares outstanding	0	0
Class A common stock	'	'
Common Stock, par value (in dollars per share)	$0.10	$0.10
Common Stock, shares authorized	80,000,000	80,000,000
Common Stock, votes per share (Number of votes)	1	1
Common Stock, issued shares	28,714,614	28,824,779
Common Stock, outstanding shares	28,714,614	28,824,779
Class B common stock	'	'
Common Stock, par value (in dollars per share)	$0.10	$0.10
Common Stock, shares authorized	25,000,000	25,000,000
Common Stock, votes per share (Number of votes)	10	10
Common Stock, issued shares	6,479,290	6,489,290
Common Stock, outstanding shares	6,479,290	6,489,290

CONSOLIDATED_STATEMENTS_OF_OPE

CONSOLIDATED STATEMENTS OF OPERATIONS (USD $)	3 Months Ended		9 Months Ended
In Millions, except Per Share data, unless otherwise specified	Sep. 28, 2014	Sep. 29, 2013	Sep. 28, 2014	Sep. 29, 2013
CONSOLIDATED STATEMENTS OF OPERATIONS	'	'	'	'
Net sales	$376	$371.80	$1,137.20	$1,097.50
Cost of goods sold	237.9	237.9	726.8	701.9
GROSS PROFIT	138.1	133.9	410.4	395.6
Selling, general and administrative expenses	95	100.7	298.1	294
Restructuring and other charges, net	0.4	2.8	7.2	7
Goodwill and other long-lived asset impairment charges	'	0.2	'	0.2
OPERATING INCOME	42.7	30.2	105.1	94.4
Other (income) expense:	'	'	'	'
Interest income	-0.1	-0.1	-0.4	-0.4
Interest expense	4.8	5.1	14.6	16.6
Other expense, net	1.6	0.3	1.9	1.7
Total other expense	6.3	5.3	16.1	17.9
INCOME FROM CONTINUING OPERATIONS BEFORE INCOME TAXES	36.4	24.9	89	76.5
Provision for income taxes	13.8	7.4	31	23.8
Net income from continuing operations	22.6	17.5	58	52.7
Loss from discontinued operations, net of tax	'	-2.1	'	-2.3
NET INCOME	$22.60	$15.40	$58	$50.40
Net income (loss) per share:	'	'	'	'
Continuing operations (in dollars per share)	$0.64	$0.49	$1.64	$1.48
Discontinued operations (in dollars per share)	'	($0.06)	'	($0.06)
NET INCOME (in dollars per share)	$0.64	$0.43	$1.64	$1.42
Weighted average number of shares (in shares)	35.3	35.4	35.3	35.5
Net income (loss) per share:	'	'	'	'
Continuing operations (in dollars per share)	$0.64	$0.49	$1.64	$1.48
Discontinued operations (in dollars per share)	'	($0.06)	'	($0.07)
NET INCOME (in dollars per share)	$0.64	$0.43	$1.64	$1.41
Weighted average number of shares (in shares)	35.4	35.6	35.4	35.6
Dividends per share (in dollars per share)	$0.15	$0.13	$0.43	$0.37

CONSOLIDATED_STATEMENTS_OF_COM

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) (USD $)	3 Months Ended		9 Months Ended
In Millions, unless otherwise specified	Sep. 28, 2014	Sep. 29, 2013	Sep. 28, 2014	Sep. 29, 2013
CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS)	'	'	'	'
Net income	$22.60	$15.40	$58	$50.40
Other comprehensive (loss) income:	'	'	'	'
Foreign currency translation adjustments	-44.4	24.4	-53	12
Defined benefit pension plans, net of tax:	'	'	'	'
Net loss, net of tax benefits of $6.6	-10.5	'	-10.5	'
Amortization of net losses included in net periodic pension cost	0.2	0.1	0.5	0.4
Defined benefit pension plans, net of tax	-10.3	0.1	-10	0.4
Other comprehensive (loss) income	-54.7	24.5	-63	12.4
Comprehensive (loss) income	($32.10)	$39.90	($5)	$62.80

CONSOLIDATED_STATEMENTS_OF_COM1

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Parenthetical) (USD $)	3 Months Ended	9 Months Ended
In Millions, unless otherwise specified	Sep. 28, 2014	Sep. 28, 2014
CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS)	'	'
Net loss, tax benefits	$6.60	$6.60

CONSOLIDATED_STATEMENTS_OF_CAS

CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $)	9 Months Ended
In Millions, unless otherwise specified	Sep. 28, 2014	Sep. 29, 2013
OPERATING ACTIVITIES	'	'
Net income	$58	$50.40
Less: Loss from discontinued operations, net of taxes	'	-2.3
Net income from continuing operations	58	52.7
Adjustments to reconcile net income from continuing operations to net cash provided by continuing operating activities:	'	'
Depreciation	24.7	25.4
Amortization of intangibles	11.1	11
Loss on disposal and impairment of goodwill, property, plant and equipment and other	0.1	0.2
Stock-based compensation	6	6.6
Deferred income tax benefit	1.1	-3
Changes in operating assets and liabilities, net of effects from business acquisitions and divestures:	'	'
Accounts receivable	-18.5	-20.8
Inventories	-5.3	-20.2
Prepaid expenses and other assets	17.9	2.1
Accounts payable, accrued expenses and other liabilities	-21.6	13.7
Net cash provided by continuing operations	73.5	67.7
INVESTING ACTIVITIES	'	'
Additions to property, plant and equipment	-16.1	-22.6
Proceeds from the sale of property, plant and equipment	0.4	1.4
Proceeds from the sale of securities	'	2.1
Net cash used in investing activities	-15.7	-19.1
FINANCING ACTIVITIES	'	'
Payments of long-term debt	-1.6	-76.4
Payments of capital leases and other	-3.3	-3.9
Proceeds from share transactions under employee stock plans	10.5	9.4
Tax benefit of stock awards exercised	1.9	1.7
Payments to repurchase common stock	-29.1	-20
Debt issuance costs	-2	'
Dividends	-15.2	-13.1
Net cash used in financing activities	-38.8	-102.3
Effect of exchange rate changes on cash and cash equivalents	-14.5	1.8
Net cash used in operating activities of discontinued operations	'	-0.6
Net cash provided by investing activities of discontinued operations	'	7.9
INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS	4.5	-44.6
Cash and cash equivalents at beginning of year	267.9	271.8
CASH AND CASH EQUIVALENTS AT END OF PERIOD	272.4	227.2
NON-CASH INVESTING AND FINANCING ACTIVITIES	'	'
Acquisitions of fixed assets under financing agreement	'	0.7
Issuance of stock under management stock purchase plan	0.3	0.5
CASH PAID FOR:	'	'
Interest	9.6	12.3
Income taxes	$21.70	$25.10

Basis_of_Presentation

Basis of Presentation	9 Months Ended
	Sep. 28, 2014
Basis of Presentation	'
Basis of Presentation	'
	1.              Basis of Presentation
	The accompanying unaudited consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States for interim financial information and with the instructions to Form 10-Q and Article 10 of Regulation S-X. Accordingly, they do not include all of the information and footnotes required by accounting principles generally accepted in the United States for complete financial statements.  In the opinion of management, all adjustments (consisting of normal recurring accruals) considered necessary for a fair presentation have been included in the Watts Water Technologies, Inc. (the Company) Consolidated Balance Sheet as of September 28, 2014, the Consolidated Statements of Operations for the third quarters and nine months ended September 28, 2014 and September 29, 2013, the Consolidated Statements of Comprehensive Income (Loss) for the third quarters and nine months ended September 28, 2014 and September 29, 2013, and the Consolidated Statements of Cash Flows for the nine months ended September 28, 2014 and September 29, 2013.
	The consolidated balance sheet at December 31, 2013 has been derived from the audited consolidated financial statements at that date. The accounting policies followed by the Company are described in the Company’s Annual Report on Form 10-K for the year ended December 31, 2013.  The financial statements included in this report should be read in conjunction with the consolidated financial statements and notes included in the Annual Report on Form 10-K for the year ended December 31, 2013. Operating results for the interim periods presented are not necessarily indicative of the results to be expected for the year ending December 31, 2014.
	The Company operates on a 52-week fiscal year ending on December 31st.  Any quarterly and year-to-date data contained in this Quarterly Report on Form 10-Q generally reflect the results of operations for a 13-week period or 39-week period, respectively.

Accounting_Policies

Accounting Policies	9 Months Ended
	Sep. 28, 2014
Accounting Policies	'
Accounting Policies	'
	2.              Accounting Policies
	Estimates
	The preparation of financial statements in conformity with accounting principles generally accepted in the United States requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates.
	Goodwill and Long-Lived Assets
	The changes in the carrying amount of goodwill by geographic segment are as follows:
		September 28, 2014
		Gross Balance											Accumulated Impairment Losses								Net Goodwill
		Balance			Acquired			Foreign			Balance		Balance			Impairment		Balance			September 28,
		January 1,			During			Currency			September 28,		January 1,			Loss		September 28,			2014
		2014			the			Translation			2014		2014			During the		2014
					Period			and Other								Period
		(in millions)
	Americas	$	224.7		$	—		$	(0.5	)	$	224.2	$	(24.5	)	$	—	$	(24.5	)	$	199.7
	Europe, Middle East and Africa (EMEA)	301.3			—			(21.3		)	280		—			—		—			280
	Asia-Pacific	13.3			—			(0.2		)	13.1		—			—		—			13.1
	Total	$	539.3		$	—		$	(22.0	)	$	517.3	$	(24.5	)	$	—	$	(24.5	)	$	492.8
		September 29, 2013
		Gross Balance											Accumulated Impairment Losses								Net Goodwill
		Balance			Acquired			Foreign			Balance		Balance			Impairment		Balance			September 29,
		January 1,			During the			Currency			September 29,		January 1,			Loss During		September 29,			2013
		2013			Period			Translation			2013		2013			the Period		2013
								and Other
		(in millions)
	Americas	$	225.6		$	—		$	(0.5	)	$	225.1	$	(24.2	)	$	—	$	(24.2	)	$	200.9
	EMEA	289.7			—			6.1			295.8		—			—		—			295.8
	Asia-Pacific	12.9			—			0.2			13.1		—			—		—			13.1
	Total	$	528.2		$	—		$	5.8		$	534	$	(24.2	)	$	—	$	(24.2	)	$	509.8
	Goodwill and indefinite-lived intangible assets are tested for impairment at least annually or more frequently if events or circumstances indicate that it is “more likely than not” that they might be impaired, such as from a change in business conditions. The Company performs its annual goodwill and indefinite-lived intangible assets impairment assessment in the fourth quarter of each year or earlier if there is a triggering event or circumstance that indicates that an impairment loss may have been incurred.
	Intangible assets with estimable lives and other long-lived assets are reviewed for impairment whenever events or changes in circumstances indicate that the carrying amount of an asset or asset group may not be recoverable. Recoverability of intangible assets with estimable lives and other long-lived assets are measured by a comparison of the carrying amount of an asset or asset group to future net undiscounted pretax cash flows expected to be generated by the asset or asset group. If these comparisons indicate that an asset is not recoverable based on the future net undiscounted pretax cash flows, the impairment loss recognized is the amount by which the carrying amount of the asset or asset group exceeds the related estimated fair value. Estimated fair value is based on either discounted future pretax operating cash flows or appraised values, depending on the nature of the asset. The Company determines the discount rate for this analysis based on the weighted average cost of capital based on the market and guideline public companies for the related business, and does not allocate interest charges to the asset or asset group being measured.  Judgment is required to estimate future operating cash flows.
	Intangible assets include the following:
		September 28, 2014									December 31, 2013
		Gross			Accumulated			Net			Gross		Accumulated			Net
		Carrying			Amortization			Carrying			Carrying		Amortization			Carrying
		Amount						Amount			Amount					Amount
		(in millions)
	Patents	$	16.3		$	(13.1	)	$	3.2		$	16.6	$	(12.6	)	$	4
	Customer relationships	130.1			(84.5		)	45.6			133		(76.4		)	56.6
	Technology	26.6			(12.3		)	14.3			26.9		(10.9		)	16
	Trade Names	13.4			(3.9		)	9.5			13.7		(3.0		)	10.7
	Other	8.8			(5.7		)	3.1			8.8		(5.6		)	3.2
	Total amortizable intangibles	195.2			(119.5		)	75.7			199		(108.5		)	90.5
	Indefinite-lived intangible assets	40.7			—			40.7			41.9		—			41.9
	Total	$	235.9		$	(119.5	)	$	116.4		$	240.9	$	(108.5	)	$	132.4
	Aggregate amortization expense for amortizable intangible assets for both the third quarters of 2014 and 2013 was $3.7 million and $11.1 million and $11.0 million for the first nine months of 2014 and 2013, respectively.  Additionally, future amortization expense for the next five years on amortizable intangible assets is expected to be approximately $3.2 million for the remainder of 2014, $14.0 million for 2015, $13.6 million for 2016, $13.2 million for 2017 and $9.8 million for 2018. Amortization expense is recorded on a straight-line basis over the estimated useful lives of the intangible assets. The weighted-average remaining life of total amortizable intangible assets is 8.1 years. Patents, customer relationships, technology, trade names and other amortizable intangibles have weighted-average remaining lives of 5.2 years, 4.8 years, 11.1 years, 10.3 years and 38.3 years, respectively. Indefinite-lived intangible assets primarily include trademarks and trade names.
	Stock-Based Compensation
	The Company maintains one stock incentive plan, the 2004 Stock Incentive Plan.  Under this plan, key employees have been granted nonqualified stock options to purchase the Company’s Class A common stock. Options typically become exercisable over a four-year period at the rate of 25% per year and expire ten years after the grant date. However, most options granted in 2014 become exercisable over a three-year period at the rate of one-third per year.  Options granted under the plan may have exercise prices of not less than 100% of the fair market value of the Class A common stock on the date of grant. The Company’s current practice is to grant all options at fair market value on the grant date. The Company issued 114,211 and 349,867 stock options during the first nine months of 2014 and 2013, respectively.
	The fair value of each option issued under the 2004 Stock Incentive Plan is estimated on the date of grant, using the Black-Scholes-Merton Model, based on the following weighted average assumptions:
		2014		2013
	Expected life (years)	6		6
	Expected stock price volatility	37.5	%	40.3	%
	Expected dividend yield	1	%	1	%
	Risk-free interest rate	1.9	%	1.7	%
	The above assumptions were used to determine the weighted average grant-date fair value of stock options of $20.04 and $20.30 in 2014 and 2013, respectively.
	The Company grants shares of restricted stock and deferred shares to key employees and stock awards to non-employee members of the Company’s Board of Directors under the 2004 Stock Incentive Plan.  Stock awards to non-employee members of the Company’s Board of Directors are fully vested upon grant.  Employees’ restricted stock awards and deferred shares typically vest over a three-year period at the rate of one-third per year, except that most restricted stock awards and deferred shares granted in 2014 vest over a two-year period at the rate of 50% per year. The restricted stock awards and deferred shares are amortized to expense on a straight-line basis over the vesting period. The Company issued 150,577 and 131,510 shares of restricted stock in the first nine months of 2014 and 2013, respectively.
	Beginning in 2014, the Company also granted performance stock units to key employees under the 2004 Stock Incentive Plan.  Performance stock units vest at the end of a three-year performance period.  Upon vesting, the number of shares of the Company’s Class A common stock awarded to each performance stock unit recipient will be determined based on the Company’s performance relative to certain performance goals set at the time the performance stock units were granted.  The performance goals for the 2014 performance stock units are based on the compound annual growth rate of the Company’s revenue over the three-year performance period and the Company’s return on invested capital (“ROIC”) for the third year of the performance period.  The performance period for the 2014 performance stock units is January 1, 2014 through December 31, 2016.  The 2014 performance stock units also provide an overall minimum ROIC threshold, which the Company must exceed in order for any shares of the Company’s Class A common stock to be earned. The number of shares of Class A common stock that may be earned by a performance stock unit recipient ranges from 0% to 200% of a target number of shares designated for each recipient at the time of grant.  The performance stock units are amortized to expense over the vesting period based on the Company’s performance relative to the performance goals.  If such goals are not met, no compensation expense is recognized and previously recognized compensation expense is reversed. The Company issued 117,619 shares of performance stock units in the first nine months of 2014 under the 2004 Stock Incentive Plan.
	The Company has a Management Stock Purchase Plan that allows for the purchase of restricted stock units (RSUs) by key employees.  On an annual basis, key employees may elect to receive a portion of their annual incentive compensation in RSUs instead of cash.  Each RSU represents one share of Class A common stock and is purchased by the employee at 67% of the fair market value of the Company’s Class A common stock on the date of grant.  RSUs vest either annually over a three-year period from the grant date or upon the third anniversary of the grant date and receipt of the shares underlying RSUs is deferred for a minimum of three years or such greater number of years as is chosen by the employee.  An aggregate of 2,000,000 shares of Class A common stock may be issued under the Management Stock Purchase Plan. The Company granted 30,561 RSUs and 44,777 RSUs in the first nine months of 2014 and 2013, respectively.
	The fair value of each RSU issued under the Management Stock Purchase Plan is estimated on the date of grant using the Black-Scholes-Merton Model based on the following weighted average assumptions:
		2014		2013
	Expected life (years)	3		3
	Expected stock price volatility	31.2	%	34.1	%
	Expected dividend yield	0.9	%	0.9	%
	Risk-free interest rate	0.7	%	0.4	%
	The above assumptions were used to determine the weighted average grant-date fair value of RSUs of $22.57 and $18.05 in 2014 and 2013, respectively.
A more detailed description of each of these plans can be found in Note 12 of Notes to Consolidated Financial Statements in the Company’s Annual Report on Form 10-K for the year ended December 31, 2013.
Shipping and Handling
The Company’s shipping and handling costs included in selling, general and administrative expenses were $15.8 million and $15.9 million for the third quarters of 2014 and 2013, respectively, and were $46.3 million and $45.6 million for the first nine months of 2014 and 2013, respectively.  The 2013 shipping and handling costs disclosed have been updated to include handling costs in order to be comparable with the current quarter.
Research and Development
Research and development costs included in selling, general and administrative expenses were $5.3 million and $5.2 million for the third quarters of 2014 and 2013, respectively, and were $17.2 million and $16.1 million for the first nine months of 2014 and 2013, respectively.
Taxes, Other than Income Taxes
Taxes assessed by governmental authorities on sale transactions are recorded on a net basis and excluded from sales in the Company’s consolidated statements of operations.
Income Taxes
Income taxes are accounted for under the asset and liability method. Deferred tax assets and liabilities are recognized for the future tax consequences attributable to differences between the financial statement carrying amounts of existing assets and liabilities and their respective tax bases and operating loss and tax credit carry forwards. Deferred tax assets and liabilities are measured using enacted tax rates expected to apply to taxable income in the years in which those temporary differences are expected to be recovered or settled. The effect on deferred tax assets and liabilities of a change in tax rates is recognized in income in the period that includes the enactment date.
New Accounting Standards
In June 2014, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) 2014-12, “Compensation — Stock Compensation: Accounting for Share Based Payments When the Terms of an Award Provide That a Performance Target Could Be Achieved after the Requisite Service Period”. ASU 2014-12 clarifies that performance targets that could be achieved after the requisite period should be treated as performance conditions. Those performance conditions would not be reflected in estimating the grant date fair value of the award, but instead would be accounted for when the achievement of the performance condition becomes probable. ASU 2014-12 is effective in the first quarter of 2016 for public companies with calendar year ends, with early adoption permitted. The adoption of this guidance is not expected to have a material impact on the Company’s financial statements.
In May 2014, FASB issued ASU 2014-09, “Revenue from Contracts with Customers”. ASU 2014-09 converges revenue recognition under U.S. GAAP and International Financial Reporting Standards (“IFRS”). For U.S. GAAP, the standard generally eliminates transaction and industry-specific revenue recognition guidance. This includes current guidance on long-term construction-type contracts, software arrangements, real estate sales, telecommunication arrangements, and franchise sales. Under the new standard, revenue is recognized based on a five-step model. ASU 2014-09 is effective in the first quarter of 2017 for public companies with calendar year ends, and early adoption is not permitted for public companies under U.S. GAAP. The Company is assessing the impact of this standard on the Company’s financial statements.
In April 2014, FASB issued ASU 2014-08, “Presentation of Financial Statements and Property, Plant, and Equipment: Reporting Discontinued Operations and Disclosures of Disposals of Components of an Entity”. ASU 2014-08 will change the definition of discontinued operations and limit discontinued operations presentation to disposals of components representing a strategic shift that will have a major effect on the operations and financial results of the issuer. ASU 2014-08 is effective in the first quarter of 2015 for public companies with calendar year ends, with early adoption permitted. The adoption of this guidance is not expected to have a material impact on the Company’s financial statements.

Discontinued_Operations

Discontinued Operations	9 Months Ended
	Sep. 28, 2014
Discontinued Operations	'
Discontinued Operations	'
	3.              Discontinued Operations
	On August 1, 2013, the Company completed the sale of all of the outstanding shares of an indirectly wholly-owned subsidiary, Watts Insulation GmbH (Austroflex), receiving net cash proceeds of $7.9 million.  The loss after tax on disposal of the business was approximately $2.2 million. The Company does not have a substantial continuing involvement in Austroflex’s operations and cash flows, therefore Austroflex’s results of operations have been presented as discontinued operations and all periods presented have been adjusted in the consolidated interim financial statements to reflect Austroflex’s results as discontinued operations. Austroflex’s pretax loss included in discontinued operations for the three and nine months ended September 29, 2013 was $2.1 million and $2.4 million, respectively. Austroflex’s revenues reported in discontinued operations were $1.8 million and $9.5 million for the three and nine months ended September 29, 2013, respectively.

Financial_Instruments_and_Deri

Financial Instruments and Derivative Instruments	9 Months Ended
	Sep. 28, 2014
Financial Instruments and Derivative Instruments	'
Financial Instruments and Derivative Instruments	'
	4.              Financial Instruments and Derivative Instruments
	The Company measures certain financial assets and liabilities at fair value on a recurring basis, including deferred compensation plan assets and related liability, and contingent consideration. The fair values of these certain financial assets and liabilities were determined using the following inputs at September 28, 2014 and December 31, 2013:
		Fair Value Measurements at September 28, 2014 Using:
				Quoted Prices in			Significant Other		Significant
				Active			Observable		Unobservable
				Markets for Identical			Inputs		Inputs
				Assets
		Total		(Level 1)			(Level 2)		(Level 3)
		(in millions)
	Assets
	Plan asset for deferred compensation(1)	$	4.1	$	4.1		$	—	$	—
	Total assets	$	4.1	$	4.1		$	—	$	—
	Liabilities
	Plan liability for deferred compensation(2)	$	4.1	$	4.1		$	—	$	—
	Contingent consideration(3)	2.2		—			—		2.2
	Total liabilities	$	6.3	$	4.1		$	—	$	2.2
		Fair Value Measurements at December 31, 2013 Using:
				Quoted Prices in			Significant Other		Significant
				Active			Observable		Unobservable
				Markets for Identical			Inputs		Inputs
				Assets
		Total		(Level 1)			(Level 2)		(Level 3)
		(in millions)
	Assets
	Plan asset for deferred compensation(1)	$	4.6	$	4.6		$	—	$	—
	Total assets	$	4.6	$	4.6		$	—	$	—
	Liabilities
	Plan liability for deferred compensation(2)	$	4.6	$	4.6		$	—	$	—
	Contingent consideration(3)	4.4		—			—		4.4
	Total liabilities	$	9	$	4.6		$	—	$	4.4
	(1)     Included on the Company’s consolidated balance sheet in other assets (other, net).
	(2)     Included on the Company’s consolidated balance sheet in accrued compensation and benefits.
	(3)     Included on the Company’s consolidated balance sheet in accrued expenses and other liabilities as of September 28, 2014 and in other noncurrent liabilities and accrued expenses and other liabilities as of December 31, 2013.
	The table below provides a summary of the changes in fair value of all financial assets and liabilities measured at fair value on a recurring basis using significant unobservable inputs (Level 3) for the period December 31, 2013 to September 28, 2014.
		Balance					Total realized and					Balance
							unrealized (gains)
							losses included in:
		December 31,		Settlements			Net earnings		Comprehensive			September 28,
		2013					adjustments		income			2014
		(in millions)
	Contingent consideration	$	4.4	$	(2.2	)	$	0.1	$	(0.1	)	$	2.2
	On January 31, 2012, the Company completed the acquisition of tekmar Control Systems (tekmar) in a share purchase transaction. The initial purchase price paid was CAD $18.0 million, with post-closing adjustments related to working capital and an earnout based on the attainment of certain future earnings levels. A contingent liability of $5.1 million was recognized as the estimate of the acquisition date fair value of the contingent consideration. This liability was classified as Level 3 under the fair value hierarchy as it was based on the probability of achievement of a future performance metric as of the date of the acquisition, which was not observable in the market. The contingent liability was increased by $0.1 million in the third quarter of 2014 and by $1.0 million during 2013 based on revised estimates of the fair value of the contingent consideration. Portions of the contingent consideration were paid out during the first quarter of 2014 and the second quarter of 2013, in the amount of $2.2 million and $1.2 million, respectively, based on performance metrics achieved.  The earnout will be completed based on fiscal year 2014 earnings and final payment made in 2015.
	Cash equivalents consist of instruments with remaining maturities of three months or less at the date of purchase and consist primarily of money market funds, for which the carrying amount is a reasonable estimate of fair value.
	The Company uses financial instruments from time to time to enhance its ability to manage risk, including foreign currency and commodity pricing exposures, which exist as part of its ongoing business operations. The use of derivatives exposes the Company to counterparty credit risk for nonperformance and to market risk related to changes in currency exchange rates and commodity prices. The Company manages its exposure to counterparty credit risk through diversification of counterparties. The Company’s counterparties in derivative transactions are substantial commercial banks with significant experience using such derivative instruments. The impact of market risk on the fair value and cash flows of the Company’s derivative instruments is monitored and the Company restricts the use of derivative financial instruments to hedging activities. The Company does not enter into contracts for trading purposes nor does the Company enter into any contracts for speculative purposes. The use of derivative instruments is approved by senior management under written guidelines. The Company has elected not to designate its derivative instruments as hedging instruments and the change in the fair value of the derivative instruments are recognized in the statement of operations.
	The Company has exposure to a number of foreign currency rates, including the Canadian dollar, the euro, the Chinese yuan and the British pound sterling. To manage this risk, the Company has in the past used a layering methodology and entered into forward exchange contracts which hedged approximately 50% of the projected intercompany purchase transactions for the next twelve months. The Company presently does not have any open forward exchange contracts.
	Fair Value
	The carrying amounts of cash and cash equivalents, trade receivables and trade payables approximate fair value because of the short maturity of these financial instruments.
	The fair values of the Company’s 5.85% senior notes due 2016, and 5.05% senior notes due 2020, are based on a discounted cash flow model using comparable industrial companies, the Company’s credit metrics, the Company’s size, as well as current market interest rates quoted in active markets and are classified within Level 2 of the valuation hierarchy.  The fair value of the Company’s variable rate debt approximates its carrying value. The carrying amount and the estimated fair market value of the Company’s long-term debt, including the current portion, are as follows:
		September 28,		December 31,
		2014		2013
		(in millions)
	Carrying amount	$	305.7	$	307.7
	Estimated fair value	$	328.6	$	333.4

Restructuring_and_Other_Charge

Restructuring and Other Charges, Net	9 Months Ended
	Sep. 28, 2014
Restructuring and Other Charges, Net	'
Restructuring and Other Charges, Net	'
	5.              Restructuring and Other Charges, Net
	The Company’s Board of Directors approves all major restructuring programs that involve the discontinuance of significant product lines or the shutdown of significant facilities. From time to time, the Company takes additional restructuring actions, including involuntary terminations that are not part of a major program. The Company accounts for these costs in the period that the individual employees are notified or the liability is incurred. These costs are included in restructuring and other charges in the Company’s consolidated statements of operations.
	2013 Actions
	On July 30, 2013, the Board of Directors authorized a restructuring program with respect to the Company’s EMEA segment to reduce its European manufacturing footprint, improve organizational and operational efficiency and better align costs with expected revenues in response to changing market conditions. The restructuring program is expected to include a pre-tax charge to earnings totaling approximately $10.4 million, all of which is expected to be recorded through the end of fiscal 2014. In the third quarter of 2014, the estimated cost of a planned action within the 2013 restructuring program was reduced, resulting in a decrease of the total expected pretax cost from $14.7 million to $10.4 million. The change is expected to result primarily in reduced severance costs. The total charge will include costs for severance benefits, relocation, site clean-up, professional fees and certain asset write-downs. The total net after-tax charge for the restructuring program is expected to be approximately $7.3 million. The restructuring program is expected to be completed by the end of the fourth quarter of fiscal 2014. The net after-tax charges incurred in the third quarter and first nine months of 2014 were $0.3 million and $2.0 million, respectively.
	Other Actions
	The Company also periodically initiates other actions which are not part of a major program.  In 2013 and 2014, the Company initiated restructuring activities in EMEA to relocate certain manufacturing activities and in EMEA and the Americas to reduce costs through reductions-in-force.  There are no remaining expected costs relating to these actions.
	A summary of the pre-tax cost by restructuring program is as follows:
		Third Quarter Ended						Nine Months Ended
		September 28,			September 29,			September 28,			September 29,
		2014			2013			2014			2013
		(in millions)
	Restructuring costs:
	2013 Actions	$	0.4		$	—		$	2.9		$	—
	Other Actions	—			2.8			4.3			7
	Total restructuring and other charges, net	$	0.4		$	2.8		$	7.2		$	7
	The Company recorded pre-tax restructuring charges, in its business segments as follows:
		Third Quarter Ended						Nine Months Ended
		September 28,			September 29,			September 28,			September 29,
		2014			2013			2014			2013
		(in millions)
	Americas	$	—		$	—		$	2.3		$	0.3
	EMEA	0.4			2.8			4.1			6.7
	Corporate	—			—			0.8			—
	Total	$	0.4		$	2.8		$	7.2		$	7
	Details of the Company’s 2013 European restructuring program reserve, which for the nine months ended September 28, 2014 relates only to severance, is as follows:
		Nine Months Ended
		September 28, 2014
		(in millions)
	Balance at December 31, 2013	$	2
	Net pre-tax restructuring charges	0.4
	Utilization and foreign currency impact	(0.3		)
	Balance at March 30, 2014	$	2.1
	Net pre-tax restructuring charges	2.1
	Utilization and foreign currency impact	(1.4		)
	Balance at June 29, 2014	$	2.8
	Net pre-tax restructuring charges	0.4
	Utilization and foreign currency impact	(0.9		)
	Balance at September 28, 2014	$	2.3
	The following table summarizes total expected, incurred and remaining pre-tax costs for the 2013 European restructuring program actions by type, and all attributable to the EMEA reportable segment:
		Severance			Legal and			Asset			Facility			Total
					consultancy			write-downs			exit
											and other
		(in millions)
	Expected costs	$	7.5		$	0.1		$	1.7		$	1.1		$	10.4
	Costs incurred—2013	(4.1		)	—			—			—			(4.1		)
	Costs incurred—first quarter 2014	(0.1		)	—			(0.2		)	(0.1		)	(0.4		)
	Costs incurred—secondquarter 2014	(2.0		)	(0.1		)	—			—			(2.1		)
	Costs incurred—thirdquarter 2014	(0.4		)	—			—			—			(0.4		)
	Remaining costs at September 28, 2014	$	0.9		$	—		$	1.5		$	1		$	3.4

Earnings_per_Share

Earnings per Share	9 Months Ended
	Sep. 28, 2014
Earnings per Share	'
Earnings per Share	'
	6.              Earnings per Share
	The following tables set forth the reconciliation of the calculation of earnings per share:
		For the Third Quarter Ended September 28, 2014					For the Third Quarter Ended September 29, 2013
		Income		Shares	Per Share		Income			Shares	Per Share
		(Numerator)		(Denominator)	Amount		(Numerator)			(Denominator)	Amount
		(amounts in millions, except per share amounts)
	Basic EPS
	Net income:
	Continuing operations	$	22.6	35.3	$	0.64	$	17.5		35.4	$	0.49
	Discontinued operations	—			—		(2.1		)		(0.06		)
	Net income	$	22.6		$	0.64	$	15.4			$	0.43
	Effect of dilutive securities
	Common stock equivalents			0.1						0.2
	Diluted EPS
	Net income:
	Continuing operations	$	22.6		$	0.64	$	17.5			$	0.49
	Discontinued operations	—			—		(2.1		)		(0.06		)
	Net income	$	22.6	35.4	$	0.64	$	15.4		35.6	$	0.43
	Options to purchase 0.3 million and 0.2 million shares of Class A common stock were outstanding during the third quarters of 2014 and 2013, respectively, but were not included in the computation of diluted EPS because to do so would be anti-dilutive.
		For the Nine Months Ended September 28, 2014					For the Nine Months Ended September 29, 2013
		Income		Shares	Per Share		Income			Shares	Per Share
		(Numerator)		(Denominator)	Amount		(Numerator)			(Denominator)	Amount
		(amounts in millions, except per share amounts)
	Basic EPS
	Net income:
	Continuing operations	$	58	35.3	$	1.64	$	52.7		35.5	$	1.48
	Discontinued operations	—			—		(2.3		)		(0.06		)
	Net income	$	58		$	1.64	$	50.4			$	1.42
	Effect of dilutive securities
	Common stock equivalents			0.1						0.1
	Diluted EPS
	Net income:
	Continuing operations	$	58		$	1.64	$	52.7			$	1.48
	Discontinued operations	—			—		(2.3		)		(0.07		)
	Net income	$	58	35.4	$	1.64	$	50.4		35.6	$	1.41
	Options to purchase 0.3 million shares of Class A common stock were outstanding during both of the first nine months of 2014 and 2013, but were not included in the computation of diluted EPS because to do so would be anti-dilutive.
	On April 30, 2013, the Company’s Board of Directors authorized the repurchase of up to $90 million of the Company’s Class A common stock from time to time on the open market or in privately negotiated transactions.  The timing and number of any shares repurchased will be determined by the Company’s management based on its evaluation of market conditions.  Repurchases may also be made under a Rule 10b5-1 plan, which would permit shares to be repurchased when the Company might otherwise be precluded from doing so under insider trading laws.  The repurchase program may be suspended or discontinued at any time, subject to the terms of any Rule 10b5-1 plan the Company may enter into with respect to the repurchase program.  During the third quarter ended September 28, 2014, the Company repurchased approximately 149,000 shares of Class A common stock at a cost of approximately $9.1 million.  During the nine months ended September 28, 2014, the Company repurchased approximately 496,000 shares of Class A common stock at a cost of approximately $29.1 million. During the nine months ended September 29, 2013, the Company repurchased approximately 402,000 shares of Class A common stock at a cost of approximately $20.0 million.

Segment_Information

Segment Information	9 Months Ended
	Sep. 28, 2014
Segment Information	'
Segment Information	'
	7.              Segment Information
	The Company operates in three geographic segments: Americas, EMEA, and Asia-Pacific. Each of these operating segments is managed separately and has separate financial results that are reviewed by the Company’s chief operating decision-maker. All intercompany sales transactions have been eliminated. Sales by region are based upon location of the entity recording the sale. The accounting policies for each segment are the same as those described in the summary of significant accounting policies.
	As of January 1, 2014, the Company began allocating certain expenses to its three operating segments that had previously been recorded as Corporate expenses. These expenses primarily include stock compensation, legal expenses and audit expenses that are directly attributable to and benefit the three operating segments.  The 2013 results have been retrospectively revised for comparative purposes.
	The following is a summary of the Company’s significant accounts and balances by segment, reconciled to the consolidated totals:
		Third Quarter Ended						Nine Months Ended
		September 28,			September 29,			September 28,			September 29,
		2014			2013			2014			2013
		(in millions)
	Net Sales
	Americas	$	228.6		$	220.5		$	689.5		$	657.9
	EMEA	136.4			142.7			419.4			416
	Asia-Pacific	11			8.6			28.3			23.6
	Consolidated net sales	$	376		$	371.8		$	1,137.20		$	1,097.50
	Operating income (loss)
	Americas	$	33.4		$	21.5		$	85		$	74.3
	EMEA	15.1			13.4			37.1			34.1
	Asia-Pacific	1.7			2			4.7			7.3
	Subtotal reportable segments	50.2			36.9			126.8			115.7
	Corporate (*)	(7.5		)	(6.7		)	(21.7		)	(21.3		)
	Consolidated operating income	42.7			30.2			105.1			94.4
	Interest income	0.1			0.1			0.4			0.4
	Interest expense	(4.8		)	(5.1		)	(14.6		)	(16.6		)
	Other income (expense), net	(1.6		)	(0.3		)	(1.9		)	(1.7		)
	Income from continuing operations before income taxes	$	36.4		$	24.9		$	89		$	76.5
	Capital Expenditures
	Americas	$	2.5		$	2.4		$	7.4		$	15.2
	EMEA	2.7			2			7.8			6.3
	Asia-Pacific	0.3			0.2			0.9			1.1
	Consolidated capital expenditures	$	5.5		$	4.6		$	16.1		$	22.6
	Depreciation and Amortization
	Americas	$	4.8		$	5.2		$	14.5		$	15.3
	EMEA	6.4			6.4			19.8			19.3
	Asia-Pacific	0.5			0.5			1.5			1.8
	Consolidated depreciation and amortization	$	11.7		$	12.1		$	35.8		$	36.4
	Identifiable Assets (at end of period)
	Americas							$	696.7		$	703.6
	EMEA							840.8			864.5
	Asia-Pacific							139.2			122.3
	Consolidated identifiable assets							$	1,676.70		$	1,690.40
	Property, plant and equipment, net (at end of period)
	Americas							$	82.8		$	84.7
	EMEA							105.8			120.1
	Asia-Pacific							13.5			14.6
	Consolidated property, plant and equipment, net							$	202.1		$	219.4
	*   Corporate expenses are primarily for administrative compensation expense, compliance costs, professional fees, including corporate-related legal and audit expenses, shareholder services and benefit administration costs.
	Apart from the change noted above resulting from allocating certain expenses to its operating segments, the above operating segments are presented on a basis consistent with the presentation included in the Company’s December 31, 2013 consolidated financial statements included in its Annual Report on Form 10-K.
	The U.S. property, plant and equipment of the Company’s Americas segment was $78.5 million and $79.7 million at September 28, 2014 and September 29, 2013, respectively.  The following includes U.S. net sales of the Company’s Americas segment:
		Third Quarter Ended						Nine Months Ended
		September 28,			September 29,			September 28,			September 29,
		2014			2013			2014			2013
		(in millions)
	U.S. net sales	$	207.8		$	198		$	631.5		$	592.4
	The following includes intersegment sales for Americas, EMEA and Asia-Pacific:
		Third Quarter Ended						Nine Months Ended
		September 28,			September 29,			September 28,			September 29,
		2014			2013			2014			2013
		(in millions)
	Intersegment Sales
	Americas	$	1.5		$	1.3		$	4.6		$	3.9
	EMEA	3.3			2.6			10.7			7.7
	Asia-Pacific	36.5			39.7			116.9			128.8
	Intersegment sales	$	41.3		$	43.6		$	132.2		$	140.4

Accumulated_Other_Comprehensiv

Accumulated Other Comprehensive Income (Loss)	9 Months Ended
	Sep. 28, 2014
Accumulated Other Comprehensive Income (Loss)	'
Accumulated Other Comprehensive Income (Loss)	'
	8.              Accumulated Other Comprehensive Income (Loss)
	Accumulated other comprehensive income (loss) consists of the following:
		Foreign			Pension			Accumulated Other
		Currency			Adjustment			Comprehensive
		Translation						Income (Loss)
		(in millions)
	Balance December 31, 2013	$	37.9		$	(25.9	)	$	12
	Change in period	(4.3		)	0.2			(4.1		)
	Balance March 30, 2014	$	33.6		$	(25.7	)	$	7.9
	Change in period	(4.3		)	0.1			(4.2		)
	Balance June 29, 2014	$	29.3		$	(25.6	)	$	3.7
	Change in period	(44.4		)	(10.3		)	(54.7		)
	Balance September 28, 2014	$	(15.1	)	$	(35.9	)	$	(51.0	)
	Balance December 31, 2012	$	14.4		$	(25.2	)	$	(10.8	)
	Change in period	(19.9		)	0.2			(19.7		)
	Balance March 31, 2013	$	(5.5	)	$	(25.0	)	$	(30.5	)
	Change in period	7.5			0.1			7.6
	Balance June 30, 2013	$	2		$	(24.9	)	$	(22.9	)
	Change in period	24.4			0.1			24.5
	Balance September 29, 2013	$	26.4		$	(24.8	)	$	1.6

Debt

Debt	9 Months Ended
	Sep. 28, 2014
Debt	'
Debt	'
	9.              Debt
	On February 18, 2014, the Company terminated its prior credit agreement and entered into a new Credit Agreement (the Credit Agreement) among the Company, certain subsidiaries of the Company who become borrowers under the Credit Agreement, JPMorgan Chase Bank, N.A., as Administrative Agent, Swing Line Lender and Letter of Credit Issuer, and the other lenders referred to therein. The Credit Agreement provides for a $500 million, five-year, senior unsecured revolving credit facility which may be increased by an additional $500 million under certain circumstances and subject to the terms of the Credit Agreement. The Credit Agreement has a sublimit of up to $100 million in letters of credit. The Credit Agreement matures on February 18, 2019.
	Borrowings outstanding under the Credit Agreement bear interest at a fluctuating rate per annum equal to an applicable percentage equal to (1) in the case of Eurocurrency rate loans, the British Bankers Association LIBOR rate plus an applicable percentage, ranging from 0.975% to 1.45%, determined by reference to the Company’s consolidated leverage ratio, or (2) in the case of base rate loans and swing line loans, the highest of (a) the federal funds rate plus 0.5%, (b) the rate of interest in effect for such day as announced by JPMorgan Chase Bank, N.A. as its “prime rate,” and (c) the British Bankers Association LIBOR rate plus 1.0%, plus an applicable percentage, ranging from 0.00% to 0.45%, determined by reference to the Company’s consolidated leverage ratio. In addition to paying interest under the Credit Agreement, the Company is also required to pay certain fees in connection with the credit facility, including, but not limited to, an unused facility fee and letter of credit fees.  Under the Credit Agreement, the Company is required to satisfy and maintain specified financial ratios and other financial condition tests.  The Company may repay loans outstanding under the Credit Agreement from time to time without premium or penalty, other than customary breakage costs, if any, and subject to the terms of the Credit Agreement. As of September 28, 2014, the Company was in compliance with all covenants related to the Credit Agreement and had $476.4 million of unused and available credit under the Credit Agreement and $23.6 million of stand-by letters of credit outstanding on the Credit Agreement. The Company did not have any borrowings outstanding under the Credit Agreement at September 28, 2014.
	The Company is a party to several note agreements as further detailed in Note 10 of Notes to Consolidated Financial Statements of the Annual Report on Form 10-K for the year ended December 31, 2013.  These note agreements require the Company to maintain a fixed charge coverage ratio of consolidated EBITDA plus consolidated rent expense during the period to consolidated fixed charges.  Consolidated fixed charges are the sum of consolidated interest expense for the period and consolidated rent expense.  As of September 28, 2014, the Company was in compliance with all covenants regarding these note agreements.

Contingencies_and_Environmenta

Contingencies and Environmental Remediation	9 Months Ended
	Sep. 28, 2014
Contingencies and Environmental Remediation	'
Contingencies and Environmental Remediation	'
	10.       Contingencies and Environmental Remediation
	Accrual and Disclosure Policy
	The Company is a defendant in numerous legal matters arising from its ordinary course of operations, including those involving product liability, environmental matters and commercial disputes.
	The Company reviews its lawsuits and other legal proceedings on an ongoing basis and follows appropriate accounting guidance when making accrual and disclosure decisions.  The Company establishes accruals for matters when the Company assesses that it is probable that a loss has been incurred and the amount of the loss can be reasonably estimated.  The Company does not establish accruals for such matters when the Company does not believe both that it is probable that a loss has been incurred and the amount of the loss can be reasonably estimated.  The Company’s assessment of whether a loss is probable is based on its assessment of the ultimate outcome of the matter following all appeals.
	Under the FASB issued ASC 450 “Contingencies”, an event is “reasonably possible” if “the chance of the future event or events occurring is more than remote but less than likely” and an event is “remote” if “the chance of the future event or events occurring is slight”.  Thus, references to the upper end of the range of reasonably possible loss for cases in which the Company is able to estimate a range of reasonably possible loss mean the upper end of the range of loss for cases for which the Company believes the risk of loss is more than slight.
	There may continue to be exposure to loss in excess of any amount accrued.  When it is possible to estimate the reasonably possible loss or range of loss above the amount accrued for the matters disclosed, that estimate is aggregated and disclosed.  The Company records legal costs associated with its legal contingencies as incurred, except for legal costs associated with product liability claims which are included in the product liability accrual.
	As of September 28, 2014, the Company estimates that the aggregate amount of reasonably possible loss in excess of the amount accrued for its legal contingencies is approximately $5.8 million, pre-tax.  With respect to the estimate of reasonably possible loss, management has estimated the upper end of the range of reasonably possible loss based on (i) the amount of money damages claimed, where applicable, (ii) the allegations and factual development to date, (iii) available defenses based on the allegations, and/or (iv) other potentially liable parties.  This estimate is based upon currently available information and is subject to significant judgment and a variety of assumptions, and known and unknown uncertainties.  The matters underlying the estimate will change from time to time, and actual results may vary significantly from the current estimate.  In the event of an unfavorable outcome in one or more matters, the ultimate liability may be in excess of amounts currently accrued, if any, and may be material to the Company’s operating results or cash flows for a particular quarterly or annual period.  However, based on information currently known to it, management believes that the ultimate outcome of all matters, as they are resolved over time, is not likely to have a material adverse effect on the financial condition of the Company, though the outcome could be material to the Company’s operating results for any particular period depending, in part, upon the operating results for such period.
	Trabakoolas et al., v. Watts Water Technologies, Inc., et al.,
	On March 8, 2012, Watts Water Technologies, Inc., Watts Regulator Co., and Watts Plumbing Technologies Co., Ltd., among other companies, were named as defendants in a putative nationwide class action complaint filed in the U.S. District Court for the Northern District of California seeking to recover damages and other relief based on the alleged failure of toilet connectors. The complaint sought among other items, damages in an unspecified amount, replacement costs, injunctive relief, and attorneys’ fees and costs.
	On December 12, 2013, the Company reached an agreement in principle to settle all claims. The total settlement amount is $23.0 million, of which the Company would be responsible for $14.0 million after insurance proceeds of $9.0 million. The Court granted preliminary approval of the settlement on February 14, 2014. On July 18, 2014, the Court granted final approval of the class settlement at a fairness hearing, and issued a subsequent written order formalizing the approval on August 5, 2014.  No appeal was taken, and the order became final on September 4, 2014.  The litigation is now terminated.
	During the fourth quarter of 2013, the Company recorded a liability of $22.6 million related to the Trabakoolas matter, of which $12.7 million was included in current liabilities and $9.9 million in other noncurrent liabilities. In addition, a $9.0 million receivable was recorded in current assets related to insurance proceeds due under a separate settlement agreement.  The liability was reduced by $13.9 million for payments related to notice and claims administration, plaintiff attorneys’ fees and partial funding of the settlement amount made during the nine months ended September 28, 2014.  The $9.0 million receivable for insurance proceeds was received as of September 28, 2014.  The remaining liability of $8.8 million as of September 28, 2014 will be paid over four years.
	Product Liability
	The Company is subject to a variety of potential liabilities in connection with product liability cases.  The Company maintains product liability and other insurance coverage, which the Company believes to be generally in accordance with industry practices.  For product liability cases in the U.S., management establishes its product liability accrual, which includes legal costs associated with accrued claims, by utilizing third-party actuarial valuations which incorporate historical trend factors and the Company’s specific claims experience derived from loss reports provided by third-party claims administrators.  Changes in the nature of claims, legal costs, or the actual settlement amounts could affect the adequacy of this estimate and require changes to the accrual. Because the liability is an estimate, the ultimate liability may be more or less than reported. In other countries, the Company maintains insurance coverage with relatively high deductible payments, as product liability claims tend to be smaller than those experienced in the U.S.
	Environmental Remediation
	The Company has been named as a potentially responsible party with respect to a limited number of identified contaminated sites.  The levels of contamination vary significantly from site to site as do the related levels of remediation efforts.  Environmental liabilities are recorded based on the most probable cost, if known, or on the estimated minimum cost of remediation.  Accruals are not discounted to their present value, unless the amount and timing of expenditures are fixed and reliably determinable.  The Company accrues estimated environmental liabilities based on assumptions, which are subject to a number of factors and uncertainties.  Circumstances that can affect the reliability and precision of these estimates include identification of additional sites, environmental regulations, level of cleanup required, technologies available, number and financial condition of other contributors to remediation and the time period over which remediation may occur.  The Company recognizes changes in estimates as new remediation requirements are defined or as new information becomes available. Environmental liabilities as of September 28, 2014 and September 29, 2013 were not considered material.
	Asbestos Litigation
	The Company is defending 59 lawsuits in different jurisdictions, alleging injury or death as a result of exposure to asbestos.  The complaints in these cases typically name a large number of defendants and do not identify any particular Company products as a source of asbestos exposure.  To date, the Company has obtained a dismissal in every case before it has reached trial because discovery has failed to yield evidence of substantial exposure to any Company products.
	Other Litigation
	Other lawsuits and proceedings or claims, arising from the ordinary course of operations, are also pending or threatened against the Company.

Defined_Benefit_Plans

Defined Benefit Plans	9 Months Ended
	Sep. 28, 2014
Defined Benefit Plans	'
Defined Benefit Plans	'
	11.       Defined Benefit Plans
	For the majority of its U.S. employees, the Company sponsors a funded non-contributing defined benefit pension plan, the Watts Water Technologies, Inc. Pension Plan (the “Pension Plan”), and an unfunded non-contributing defined benefit pension plan, the Watts Water Technologies, Inc. Supplemental Employees Retirement Plan (the “SERP”).  Benefits are based primarily on years of service and employees’ compensation. The funding policy of the Company for these plans is to contribute an annual amount that does not exceed the maximum amount that can be deducted for federal income tax purposes.  On October 31, 2011, the Company’s Board of Directors voted to cease accruals effective December 31, 2011 under both the Company’s Pension Plan and the SERP.  On April 28, 2014, the Company’s Board of Directors voted to terminate the Company’s Pension Plan and the SERP.
	The Pension Plan was terminated effective July 31, 2014.  Distribution of plan assets pursuant to the termination will not be made until the plan termination satisfies the regulatory requirements prescribed by the Internal Revenue Service and the Pension Benefit Guaranty Corporation, which is expected to occur in late 2015.  The SERP was terminated effective May 15, 2014.  The Company will settle all liabilities under the SERP in accordance with Section 409A of the Internal Revenue Code by paying lump sums to plan participants at least twelve and no more than twenty four months following the termination date.  The Board of Directors authorized the Company to make such contributions to the Pension Plan and SERP as may be necessary to make the plans sufficient to settle all plan liabilities.  During the third quarter ended September 28, 2014, the Company remeasured its pension liability and net loss in accumulated other comprehensive income to reflect the plan termination basis for both the Pension Plan and SERP.  As a result, the pension liability increased $17.1 million and the net loss increased by $10.5 million, net of tax benefits of $6.6 million.
	The components of net periodic benefit cost are as follows:
		Third Quarter Ended						Nine Months Ended
		September 28,			September 29,			September 28,			September 29,
		2014			2013			2014			2013
		(in millions)
	Service cost — administrative costs	$	0.2		$	0.1		$	0.5		$	0.3
	Interest costs on benefits obligation	1.5			1.4			4.5			4.2
	Expected return on assets	(1.5		)	(1.7		)	(4.5		)	(5.1		)
	Net actuarial loss amortization	0.3			0.2			0.8			0.6
	Net periodic benefit cost	$	0.5		$	—		$	1.3		$	—
	The information related to the Company’s pension funds cash flow is as follows:
		Nine Months Ended
		September 28, 2014			September 29, 2013
		(in millions)
	Employer contributions	$	0.6		$	0.6
	The Company expects to contribute approximately $0.2 million to its pension plans for the remainder of 2014.

Subsequent_Events

Subsequent Events	9 Months Ended
	Sep. 28, 2014
Subsequent Events	'
Subsequent Events	'
	12.       Subsequent Events
	On October 14, 2014, Dean P. Freeman was terminated without cause from his positions as Executive Vice President and Chief Financial Officer of the Company.  The Company and Mr. Freeman agreed to a separation agreement, and the terms of the agreement are disclosed in a Current Report on Form 8-K filed on October 31, 2014.  The Company has initiated a search for the Company’s next Chief Financial Officer.
	Effective as of October 14, 2014, the Board of Directors of the Company appointed the Company’s current President and Chief Executive Officer, Robert J. Pagano, Jr., to serve as interim Chief Financial Officer of the Company in addition to his ongoing responsibilities as President and Chief Executive Officer.
	On October 27, 2014, the Company declared a quarterly dividend of fifteen cents ($0.15) per share on each outstanding share of Class A common stock and Class B common stock payable on December 5, 2014 to stockholders of record at the close of business on November 24, 2014.

Accounting_Policies_Policies

Accounting Policies (Policies)	9 Months Ended
	Sep. 28, 2014
Accounting Policies	'
Estimates	'
	Estimates
	The preparation of financial statements in conformity with accounting principles generally accepted in the United States requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates.
Goodwill and Long-Lived Assets	'
	Goodwill and Long-Lived Assets
	The changes in the carrying amount of goodwill by geographic segment are as follows:
		September 28, 2014
		Gross Balance											Accumulated Impairment Losses								Net Goodwill
		Balance			Acquired			Foreign			Balance		Balance			Impairment		Balance			September 28,
		January 1,			During			Currency			September 28,		January 1,			Loss		September 28,			2014
		2014			the			Translation			2014		2014			During the		2014
					Period			and Other								Period
		(in millions)
	Americas	$	224.7		$	—		$	(0.5	)	$	224.2	$	(24.5	)	$	—	$	(24.5	)	$	199.7
	Europe, Middle East and Africa (EMEA)	301.3			—			(21.3		)	280		—			—		—			280
	Asia-Pacific	13.3			—			(0.2		)	13.1		—			—		—			13.1
	Total	$	539.3		$	—		$	(22.0	)	$	517.3	$	(24.5	)	$	—	$	(24.5	)	$	492.8
		September 29, 2013
		Gross Balance											Accumulated Impairment Losses								Net Goodwill
		Balance			Acquired			Foreign			Balance		Balance			Impairment		Balance			September 29,
		January 1,			During the			Currency			September 29,		January 1,			Loss During		September 29,			2013
		2013			Period			Translation			2013		2013			the Period		2013
								and Other
		(in millions)
	Americas	$	225.6		$	—		$	(0.5	)	$	225.1	$	(24.2	)	$	—	$	(24.2	)	$	200.9
	EMEA	289.7			—			6.1			295.8		—			—		—			295.8
	Asia-Pacific	12.9			—			0.2			13.1		—			—		—			13.1
	Total	$	528.2		$	—		$	5.8		$	534	$	(24.2	)	$	—	$	(24.2	)	$	509.8
	Goodwill and indefinite-lived intangible assets are tested for impairment at least annually or more frequently if events or circumstances indicate that it is “more likely than not” that they might be impaired, such as from a change in business conditions. The Company performs its annual goodwill and indefinite-lived intangible assets impairment assessment in the fourth quarter of each year or earlier if there is a triggering event or circumstance that indicates that an impairment loss may have been incurred.
	Intangible assets with estimable lives and other long-lived assets are reviewed for impairment whenever events or changes in circumstances indicate that the carrying amount of an asset or asset group may not be recoverable. Recoverability of intangible assets with estimable lives and other long-lived assets are measured by a comparison of the carrying amount of an asset or asset group to future net undiscounted pretax cash flows expected to be generated by the asset or asset group. If these comparisons indicate that an asset is not recoverable based on the future net undiscounted pretax cash flows, the impairment loss recognized is the amount by which the carrying amount of the asset or asset group exceeds the related estimated fair value. Estimated fair value is based on either discounted future pretax operating cash flows or appraised values, depending on the nature of the asset. The Company determines the discount rate for this analysis based on the weighted average cost of capital based on the market and guideline public companies for the related business, and does not allocate interest charges to the asset or asset group being measured.  Judgment is required to estimate future operating cash flows.
	Intangible assets include the following:
		September 28, 2014									December 31, 2013
		Gross			Accumulated			Net			Gross		Accumulated			Net
		Carrying			Amortization			Carrying			Carrying		Amortization			Carrying
		Amount						Amount			Amount					Amount
		(in millions)
	Patents	$	16.3		$	(13.1	)	$	3.2		$	16.6	$	(12.6	)	$	4
	Customer relationships	130.1			(84.5		)	45.6			133		(76.4		)	56.6
	Technology	26.6			(12.3		)	14.3			26.9		(10.9		)	16
	Trade Names	13.4			(3.9		)	9.5			13.7		(3.0		)	10.7
	Other	8.8			(5.7		)	3.1			8.8		(5.6		)	3.2
	Total amortizable intangibles	195.2			(119.5		)	75.7			199		(108.5		)	90.5
	Indefinite-lived intangible assets	40.7			—			40.7			41.9		—			41.9
	Total	$	235.9		$	(119.5	)	$	116.4		$	240.9	$	(108.5	)	$	132.4
	Aggregate amortization expense for amortizable intangible assets for both the third quarters of 2014 and 2013 was $3.7 million and $11.1 million and $11.0 million for the first nine months of 2014 and 2013, respectively.  Additionally, future amortization expense for the next five years on amortizable intangible assets is expected to be approximately $3.2 million for the remainder of 2014, $14.0 million for 2015, $13.6 million for 2016, $13.2 million for 2017 and $9.8 million for 2018. Amortization expense is recorded on a straight-line basis over the estimated useful lives of the intangible assets. The weighted-average remaining life of total amortizable intangible assets is 8.1 years. Patents, customer relationships, technology, trade names and other amortizable intangibles have weighted-average remaining lives of 5.2 years, 4.8 years, 11.1 years, 10.3 years and 38.3 years, respectively. Indefinite-lived intangible assets primarily include trademarks and trade names.
Stock-Based Compensation	'
	Stock-Based Compensation
	The Company maintains one stock incentive plan, the 2004 Stock Incentive Plan.  Under this plan, key employees have been granted nonqualified stock options to purchase the Company’s Class A common stock. Options typically become exercisable over a four-year period at the rate of 25% per year and expire ten years after the grant date. However, most options granted in 2014 become exercisable over a three-year period at the rate of one-third per year.  Options granted under the plan may have exercise prices of not less than 100% of the fair market value of the Class A common stock on the date of grant. The Company’s current practice is to grant all options at fair market value on the grant date. The Company issued 114,211 and 349,867 stock options during the first nine months of 2014 and 2013, respectively.
	The fair value of each option issued under the 2004 Stock Incentive Plan is estimated on the date of grant, using the Black-Scholes-Merton Model, based on the following weighted average assumptions:
		2014		2013
	Expected life (years)	6		6
	Expected stock price volatility	37.5	%	40.3	%
	Expected dividend yield	1	%	1	%
	Risk-free interest rate	1.9	%	1.7	%
	The above assumptions were used to determine the weighted average grant-date fair value of stock options of $20.04 and $20.30 in 2014 and 2013, respectively.
	The Company grants shares of restricted stock and deferred shares to key employees and stock awards to non-employee members of the Company’s Board of Directors under the 2004 Stock Incentive Plan.  Stock awards to non-employee members of the Company’s Board of Directors are fully vested upon grant.  Employees’ restricted stock awards and deferred shares typically vest over a three-year period at the rate of one-third per year, except that most restricted stock awards and deferred shares granted in 2014 vest over a two-year period at the rate of 50% per year. The restricted stock awards and deferred shares are amortized to expense on a straight-line basis over the vesting period. The Company issued 150,577 and 131,510 shares of restricted stock in the first nine months of 2014 and 2013, respectively.
	Beginning in 2014, the Company also granted performance stock units to key employees under the 2004 Stock Incentive Plan.  Performance stock units vest at the end of a three-year performance period.  Upon vesting, the number of shares of the Company’s Class A common stock awarded to each performance stock unit recipient will be determined based on the Company’s performance relative to certain performance goals set at the time the performance stock units were granted.  The performance goals for the 2014 performance stock units are based on the compound annual growth rate of the Company’s revenue over the three-year performance period and the Company’s return on invested capital (“ROIC”) for the third year of the performance period.  The performance period for the 2014 performance stock units is January 1, 2014 through December 31, 2016.  The 2014 performance stock units also provide an overall minimum ROIC threshold, which the Company must exceed in order for any shares of the Company’s Class A common stock to be earned. The number of shares of Class A common stock that may be earned by a performance stock unit recipient ranges from 0% to 200% of a target number of shares designated for each recipient at the time of grant.  The performance stock units are amortized to expense over the vesting period based on the Company’s performance relative to the performance goals.  If such goals are not met, no compensation expense is recognized and previously recognized compensation expense is reversed. The Company issued 117,619 shares of performance stock units in the first nine months of 2014 under the 2004 Stock Incentive Plan.
	The Company has a Management Stock Purchase Plan that allows for the purchase of restricted stock units (RSUs) by key employees.  On an annual basis, key employees may elect to receive a portion of their annual incentive compensation in RSUs instead of cash.  Each RSU represents one share of Class A common stock and is purchased by the employee at 67% of the fair market value of the Company’s Class A common stock on the date of grant.  RSUs vest either annually over a three-year period from the grant date or upon the third anniversary of the grant date and receipt of the shares underlying RSUs is deferred for a minimum of three years or such greater number of years as is chosen by the employee.  An aggregate of 2,000,000 shares of Class A common stock may be issued under the Management Stock Purchase Plan. The Company granted 30,561 RSUs and 44,777 RSUs in the first nine months of 2014 and 2013, respectively.
	The fair value of each RSU issued under the Management Stock Purchase Plan is estimated on the date of grant using the Black-Scholes-Merton Model based on the following weighted average assumptions:
		2014		2013
	Expected life (years)	3		3
	Expected stock price volatility	31.2	%	34.1	%
	Expected dividend yield	0.9	%	0.9	%
	Risk-free interest rate	0.7	%	0.4	%
	The above assumptions were used to determine the weighted average grant-date fair value of RSUs of $22.57 and $18.05 in 2014 and 2013, respectively.
	A more detailed description of each of these plans can be found in Note 12 of Notes to Consolidated Financial Statements in the Company’s Annual Report on Form 10-K for the year ended December 31, 2013.
Shipping and Handling	'
	Shipping and Handling
	The Company’s shipping and handling costs included in selling, general and administrative expenses were $15.8 million and $15.9 million for the third quarters of 2014 and 2013, respectively, and were $46.3 million and $45.6 million for the first nine months of 2014 and 2013, respectively.  The 2013 shipping and handling costs disclosed have been updated to include handling costs in order to be comparable with the current quarter.
Research and Development	'
	Research and Development
	Research and development costs included in selling, general and administrative expenses were $5.3 million and $5.2 million for the third quarters of 2014 and 2013, respectively, and were $17.2 million and $16.1 million for the first nine months of 2014 and 2013, respectively.
Taxes, Other than Income Taxes	'
	Taxes, Other than Income Taxes
	Taxes assessed by governmental authorities on sale transactions are recorded on a net basis and excluded from sales in the Company’s consolidated statements of operations.
Income Taxes	'
	Income Taxes
	Income taxes are accounted for under the asset and liability method. Deferred tax assets and liabilities are recognized for the future tax consequences attributable to differences between the financial statement carrying amounts of existing assets and liabilities and their respective tax bases and operating loss and tax credit carry forwards. Deferred tax assets and liabilities are measured using enacted tax rates expected to apply to taxable income in the years in which those temporary differences are expected to be recovered or settled. The effect on deferred tax assets and liabilities of a change in tax rates is recognized in income in the period that includes the enactment date.
New Accounting Standards	'
	New Accounting Standards
	In June 2014, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) 2014-12, “Compensation — Stock Compensation: Accounting for Share Based Payments When the Terms of an Award Provide That a Performance Target Could Be Achieved after the Requisite Service Period”. ASU 2014-12 clarifies that performance targets that could be achieved after the requisite period should be treated as performance conditions. Those performance conditions would not be reflected in estimating the grant date fair value of the award, but instead would be accounted for when the achievement of the performance condition becomes probable. ASU 2014-12 is effective in the first quarter of 2016 for public companies with calendar year ends, with early adoption permitted. The adoption of this guidance is not expected to have a material impact on the Company’s financial statements.
	In May 2014, FASB issued ASU 2014-09, “Revenue from Contracts with Customers”. ASU 2014-09 converges revenue recognition under U.S. GAAP and International Financial Reporting Standards (“IFRS”). For U.S. GAAP, the standard generally eliminates transaction and industry-specific revenue recognition guidance. This includes current guidance on long-term construction-type contracts, software arrangements, real estate sales, telecommunication arrangements, and franchise sales. Under the new standard, revenue is recognized based on a five-step model. ASU 2014-09 is effective in the first quarter of 2017 for public companies with calendar year ends, and early adoption is not permitted for public companies under U.S. GAAP. The Company is assessing the impact of this standard on the Company’s financial statements.
	In April 2014, FASB issued ASU 2014-08, “Presentation of Financial Statements and Property, Plant, and Equipment: Reporting Discontinued Operations and Disclosures of Disposals of Components of an Entity”. ASU 2014-08 will change the definition of discontinued operations and limit discontinued operations presentation to disposals of components representing a strategic shift that will have a major effect on the operations and financial results of the issuer. ASU 2014-08 is effective in the first quarter of 2015 for public companies with calendar year ends, with early adoption permitted. The adoption of this guidance is not expected to have a material impact on the Company’s financial statements.

Accounting_Policies_Tables

Accounting Policies (Tables)	9 Months Ended
	Sep. 28, 2014
Accounting Policies	'
Changes in the carrying amount of goodwill by geographic segment	'
		September 28, 2014
		Gross Balance											Accumulated Impairment Losses								Net Goodwill
		Balance			Acquired			Foreign			Balance		Balance			Impairment		Balance			September 28,
		January 1,			During			Currency			September 28,		January 1,			Loss		September 28,			2014
		2014			the			Translation			2014		2014			During the		2014
					Period			and Other								Period
		(in millions)
	Americas	$	224.7		$	—		$	(0.5	)	$	224.2	$	(24.5	)	$	—	$	(24.5	)	$	199.7
	Europe, Middle East and Africa (EMEA)	301.3			—			(21.3		)	280		—			—		—			280
	Asia-Pacific	13.3			—			(0.2		)	13.1		—			—		—			13.1
	Total	$	539.3		$	—		$	(22.0	)	$	517.3	$	(24.5	)	$	—	$	(24.5	)	$	492.8
		September 29, 2013
		Gross Balance											Accumulated Impairment Losses								Net Goodwill
		Balance			Acquired			Foreign			Balance		Balance			Impairment		Balance			September 29,
		January 1,			During the			Currency			September 29,		January 1,			Loss During		September 29,			2013
		2013			Period			Translation			2013		2013			the Period		2013
								and Other
		(in millions)
	Americas	$	225.6		$	—		$	(0.5	)	$	225.1	$	(24.2	)	$	—	$	(24.2	)	$	200.9
	EMEA	289.7			—			6.1			295.8		—			—		—			295.8
	Asia-Pacific	12.9			—			0.2			13.1		—			—		—			13.1
	Total	$	528.2		$	—		$	5.8		$	534	$	(24.2	)	$	—	$	(24.2	)	$	509.8
Intangible assets	'
		September 28, 2014									December 31, 2013
		Gross			Accumulated			Net			Gross		Accumulated			Net
		Carrying			Amortization			Carrying			Carrying		Amortization			Carrying
		Amount						Amount			Amount					Amount
		(in millions)
	Patents	$	16.3		$	(13.1	)	$	3.2		$	16.6	$	(12.6	)	$	4
	Customer relationships	130.1			(84.5		)	45.6			133		(76.4		)	56.6
	Technology	26.6			(12.3		)	14.3			26.9		(10.9		)	16
	Trade Names	13.4			(3.9		)	9.5			13.7		(3.0		)	10.7
	Other	8.8			(5.7		)	3.1			8.8		(5.6		)	3.2
	Total amortizable intangibles	195.2			(119.5		)	75.7			199		(108.5		)	90.5
	Indefinite-lived intangible assets	40.7			—			40.7			41.9		—			41.9
	Total	$	235.9		$	(119.5	)	$	116.4		$	240.9	$	(108.5	)	$	132.4
Second Amended and Restated 2004 Stock Incentive Plan | Stock options	'
Stock-based compensation	'
Schedule of weighted average assumptions used to estimate the grant-date fair value of the equity award	'
		2014		2013
	Expected life (years)	6		6
	Expected stock price volatility	37.5	%	40.3	%
	Expected dividend yield	1	%	1	%
	Risk-free interest rate	1.9	%	1.7	%
Management Stock Purchase Plan | Restricted stock units (RSUs)	'
Stock-based compensation	'
Schedule of weighted average assumptions used to estimate the grant-date fair value of the equity award	'
		2014		2013
	Expected life (years)	3		3
	Expected stock price volatility	31.2	%	34.1	%
	Expected dividend yield	0.9	%	0.9	%
	Risk-free interest rate	0.7	%	0.4	%

Financial_Instruments_and_Deri1

Financial Instruments and Derivative Instruments (Tables)	9 Months Ended
	Sep. 28, 2014
Financial Instruments and Derivative Instruments	'
Schedule of fair value of financial assets and liabilities	'
		Fair Value Measurements at September 28, 2014 Using:
				Quoted Prices in			Significant Other		Significant
				Active			Observable		Unobservable
				Markets for Identical			Inputs		Inputs
				Assets
		Total		(Level 1)			(Level 2)		(Level 3)
		(in millions)
	Assets
	Plan asset for deferred compensation(1)	$	4.1	$	4.1		$	—	$	—
	Total assets	$	4.1	$	4.1		$	—	$	—
	Liabilities
	Plan liability for deferred compensation(2)	$	4.1	$	4.1		$	—	$	—
	Contingent consideration(3)	2.2		—			—		2.2
	Total liabilities	$	6.3	$	4.1		$	—	$	2.2
		Fair Value Measurements at December 31, 2013 Using:
				Quoted Prices in			Significant Other		Significant
				Active			Observable		Unobservable
				Markets for Identical			Inputs		Inputs
				Assets
		Total		(Level 1)			(Level 2)		(Level 3)
		(in millions)
	Assets
	Plan asset for deferred compensation(1)	$	4.6	$	4.6		$	—	$	—
	Total assets	$	4.6	$	4.6		$	—	$	—
	Liabilities
	Plan liability for deferred compensation(2)	$	4.6	$	4.6		$	—	$	—
	Contingent consideration(3)	4.4		—			—		4.4
	Total liabilities	$	9	$	4.6		$	—	$	4.4
	(1)     Included on the Company’s consolidated balance sheet in other assets (other, net).
	(2)     Included on the Company’s consolidated balance sheet in accrued compensation and benefits.
	(3)     Included on the Company’s consolidated balance sheet in accrued expenses and other liabilities as of September 28, 2014 and in other noncurrent liabilities and accrued expenses and other liabilities as of December 31, 2013.
Summary of the changes in fair value of all financial assets and liabilities measured at fair value on a recurring basis using significant unobservable inputs (Level 3)	'
		Balance					Total realized and					Balance
							unrealized (gains)
							losses included in:
		December 31,		Settlements			Net earnings		Comprehensive			September 28,
		2013					adjustments		income			2014
		(in millions)
	Contingent consideration	$	4.4	$	(2.2	)	$	0.1	$	(0.1	)	$	2.2
Carrying amount and estimated fair market value of the company's long-term debt, including current portion	'
		September 28,		December 31,
		2014		2013
		(in millions)
	Carrying amount	$	305.7	$	307.7
	Estimated fair value	$	328.6	$	333.4

Restructuring_and_Other_Charge1

Restructuring and Other Charges, Net (Tables)	9 Months Ended
	Sep. 28, 2014
Restructuring and Other Charges, Net	'
Summary of the pre-tax cost by restructuring program	'
		Third Quarter Ended						Nine Months Ended
		September 28,			September 29,			September 28,			September 29,
		2014			2013			2014			2013
		(in millions)
	Restructuring costs:
	2013 Actions	$	0.4		$	—		$	2.9		$	—
	Other Actions	—			2.8			4.3			7
	Total restructuring and other charges, net	$	0.4		$	2.8		$	7.2		$	7
Summary of recorded pre-tax restructuring charges, by business segments	'
		Third Quarter Ended						Nine Months Ended
		September 28,			September 29,			September 28,			September 29,
		2014			2013			2014			2013
		(in millions)
	Americas	$	—		$	—		$	2.3		$	0.3
	EMEA	0.4			2.8			4.1			6.7
	Corporate	—			—			0.8			—
	Total	$	0.4		$	2.8		$	7.2		$	7
2013 Actions	'
Restructuring and other charges	'
Summary of European restructuring program reserve related to severance	'
		Nine Months Ended
		September 28, 2014
		(in millions)
	Balance at December 31, 2013	$	2
	Net pre-tax restructuring charges	0.4
	Utilization and foreign currency impact	(0.3		)
	Balance at March 30, 2014	$	2.1
	Net pre-tax restructuring charges	2.1
	Utilization and foreign currency impact	(1.4		)
	Balance at June 29, 2014	$	2.8
	Net pre-tax restructuring charges	0.4
	Utilization and foreign currency impact	(0.9		)
	Balance at September 28, 2014	$	2.3
Summary of total expected, incurred and remaining pre-tax costs for European restructuring program actions by type	'
		Severance			Legal and			Asset			Facility			Total
					consultancy			write-downs			exit
											and other
		(in millions)
	Expected costs	$	7.5		$	0.1		$	1.7		$	1.1		$	10.4
	Costs incurred—2013	(4.1		)	—			—			—			(4.1		)
	Costs incurred—first quarter 2014	(0.1		)	—			(0.2		)	(0.1		)	(0.4		)
	Costs incurred—secondquarter 2014	(2.0		)	(0.1		)	—			—			(2.1		)
	Costs incurred—thirdquarter 2014	(0.4		)	—			—			—			(0.4		)
	Remaining costs at September 28, 2014	$	0.9		$	—		$	1.5		$	1		$	3.4

Earnings_per_Share_Tables

Earnings per Share (Tables)	9 Months Ended
	Sep. 28, 2014
Earnings per Share	'
Summary of reconciliation of the calculation of earnings per share	'
		For the Third Quarter Ended September 28, 2014					For the Third Quarter Ended September 29, 2013
		Income		Shares	Per Share		Income			Shares	Per Share
		(Numerator)		(Denominator)	Amount		(Numerator)			(Denominator)	Amount
		(amounts in millions, except per share amounts)
	Basic EPS
	Net income:
	Continuing operations	$	22.6	35.3	$	0.64	$	17.5		35.4	$	0.49
	Discontinued operations	—			—		(2.1		)		(0.06		)
	Net income	$	22.6		$	0.64	$	15.4			$	0.43
	Effect of dilutive securities
	Common stock equivalents			0.1						0.2
	Diluted EPS
	Net income:
	Continuing operations	$	22.6		$	0.64	$	17.5			$	0.49
	Discontinued operations	—			—		(2.1		)		(0.06		)
	Net income	$	22.6	35.4	$	0.64	$	15.4		35.6	$	0.43
		For the Nine Months Ended September 28, 2014					For the Nine Months Ended September 29, 2013
		Income		Shares	Per Share		Income			Shares	Per Share
		(Numerator)		(Denominator)	Amount		(Numerator)			(Denominator)	Amount
		(amounts in millions, except per share amounts)
	Basic EPS
	Net income:
	Continuing operations	$	58	35.3	$	1.64	$	52.7		35.5	$	1.48
	Discontinued operations	—			—		(2.3		)		(0.06		)
	Net income	$	58		$	1.64	$	50.4			$	1.42
	Effect of dilutive securities
	Common stock equivalents			0.1						0.1
	Diluted EPS
	Net income:
	Continuing operations	$	58		$	1.64	$	52.7			$	1.48
	Discontinued operations	—			—		(2.3		)		(0.07		)
	Net income	$	58	35.4	$	1.64	$	50.4		35.6	$	1.41

Segment_Information_Tables

Segment Information (Tables)	9 Months Ended
	Sep. 28, 2014
Segment Information	'
Summary of the Company's significant accounts and balances by segment, reconciled to the consolidated totals	'
		Third Quarter Ended						Nine Months Ended
		September 28,			September 29,			September 28,			September 29,
		2014			2013			2014			2013
		(in millions)
	Net Sales
	Americas	$	228.6		$	220.5		$	689.5		$	657.9
	EMEA	136.4			142.7			419.4			416
	Asia-Pacific	11			8.6			28.3			23.6
	Consolidated net sales	$	376		$	371.8		$	1,137.20		$	1,097.50
	Operating income (loss)
	Americas	$	33.4		$	21.5		$	85		$	74.3
	EMEA	15.1			13.4			37.1			34.1
	Asia-Pacific	1.7			2			4.7			7.3
	Subtotal reportable segments	50.2			36.9			126.8			115.7
	Corporate (*)	(7.5		)	(6.7		)	(21.7		)	(21.3		)
	Consolidated operating income	42.7			30.2			105.1			94.4
	Interest income	0.1			0.1			0.4			0.4
	Interest expense	(4.8		)	(5.1		)	(14.6		)	(16.6		)
	Other income (expense), net	(1.6		)	(0.3		)	(1.9		)	(1.7		)
	Income from continuing operations before income taxes	$	36.4		$	24.9		$	89		$	76.5
	Capital Expenditures
	Americas	$	2.5		$	2.4		$	7.4		$	15.2
	EMEA	2.7			2			7.8			6.3
	Asia-Pacific	0.3			0.2			0.9			1.1
	Consolidated capital expenditures	$	5.5		$	4.6		$	16.1		$	22.6
	Depreciation and Amortization
	Americas	$	4.8		$	5.2		$	14.5		$	15.3
	EMEA	6.4			6.4			19.8			19.3
	Asia-Pacific	0.5			0.5			1.5			1.8
	Consolidated depreciation and amortization	$	11.7		$	12.1		$	35.8		$	36.4
	Identifiable Assets (at end of period)
	Americas							$	696.7		$	703.6
	EMEA							840.8			864.5
	Asia-Pacific							139.2			122.3
	Consolidated identifiable assets							$	1,676.70		$	1,690.40
	Property, plant and equipment, net (at end of period)
	Americas							$	82.8		$	84.7
	EMEA							105.8			120.1
	Asia-Pacific							13.5			14.6
	Consolidated property, plant and equipment, net							$	202.1		$	219.4
	*   Corporate expenses are primarily for administrative compensation expense, compliance costs, professional fees, including corporate-related legal and audit expenses, shareholder services and benefit administration costs.
Schedule of U.S. net sales	'
		Third Quarter Ended						Nine Months Ended
		September 28,			September 29,			September 28,			September 29,
		2014			2013			2014			2013
		(in millions)
	U.S. net sales	$	207.8		$	198		$	631.5		$	592.4
Schedule of intersegment sales for Americas, EMEA and Asia-Pacific	'
		Third Quarter Ended						Nine Months Ended
		September 28,			September 29,			September 28,			September 29,
		2014			2013			2014			2013
		(in millions)
	Intersegment Sales
	Americas	$	1.5		$	1.3		$	4.6		$	3.9
	EMEA	3.3			2.6			10.7			7.7
	Asia-Pacific	36.5			39.7			116.9			128.8
	Intersegment sales	$	41.3		$	43.6		$	132.2		$	140.4

Accumulated_Other_Comprehensiv1

Accumulated Other Comprehensive Income (Loss) (Tables)	9 Months Ended
	Sep. 28, 2014
Accumulated Other Comprehensive Income (Loss)	'
Schedule of amounts recognized in accumulated other comprehensive income (loss)	'
		Foreign			Pension			Accumulated Other
		Currency			Adjustment			Comprehensive
		Translation						Income (Loss)
		(in millions)
	Balance December 31, 2013	$	37.9		$	(25.9	)	$	12
	Change in period	(4.3		)	0.2			(4.1		)
	Balance March 30, 2014	$	33.6		$	(25.7	)	$	7.9
	Change in period	(4.3		)	0.1			(4.2		)
	Balance June 29, 2014	$	29.3		$	(25.6	)	$	3.7
	Change in period	(44.4		)	(10.3		)	(54.7		)
	Balance September 28, 2014	$	(15.1	)	$	(35.9	)	$	(51.0	)
	Balance December 31, 2012	$	14.4		$	(25.2	)	$	(10.8	)
	Change in period	(19.9		)	0.2			(19.7		)
	Balance March 31, 2013	$	(5.5	)	$	(25.0	)	$	(30.5	)
	Change in period	7.5			0.1			7.6
	Balance June 30, 2013	$	2		$	(24.9	)	$	(22.9	)
	Change in period	24.4			0.1			24.5
	Balance September 29, 2013	$	26.4		$	(24.8	)	$	1.6

Defined_Benefit_Plans_Tables

Defined Benefit Plans (Tables)	9 Months Ended
	Sep. 28, 2014
Defined Benefit Plans	'
Schedule of the components of net periodic benefit cost	'
		Third Quarter Ended						Nine Months Ended
		September 28,			September 29,			September 28,			September 29,
		2014			2013			2014			2013
		(in millions)
	Service cost — administrative costs	$	0.2		$	0.1		$	0.5		$	0.3
	Interest costs on benefits obligation	1.5			1.4			4.5			4.2
	Expected return on assets	(1.5		)	(1.7		)	(4.5		)	(5.1		)
	Net actuarial loss amortization	0.3			0.2			0.8			0.6
	Net periodic benefit cost	$	0.5		$	—		$	1.3		$	—
Information related to the company's pension funds cash flow	'
		Nine Months Ended
		September 28, 2014			September 29, 2013
		(in millions)
	Employer contributions	$	0.6		$	0.6

Basis_of_Presentation_Details

Basis of Presentation (Details)	9 Months Ended
	Sep. 28, 2014
Basis of Presentation	'
Length of fiscal year	'364 days
Length of fiscal quarter	'91 days
Length of half fiscal year	'273 days

Accounting_Policies_Details

Accounting Policies (Details) (USD $)	9 Months Ended
In Millions, unless otherwise specified	Sep. 28, 2014	Sep. 29, 2013	Dec. 31, 2013
Gross Balance	'	'	'
Balance at the beginning of the period	$539.30	$528.20	'
Foreign Currency Translation and Other	-22	5.8	'
Balance at the end of the period	517.3	534	'
Accumulated Impairment Losses	'	'	'
Balance at the beginning of the period	-24.5	-24.2	'
Balance at the end of the period	-24.5	-24.2	'
Net Goodwill	492.8	509.8	514.8
Americas	'	'	'
Gross Balance	'	'	'
Balance at the beginning of the period	224.7	225.6	'
Foreign Currency Translation and Other	-0.5	-0.5	'
Balance at the end of the period	224.2	225.1	'
Accumulated Impairment Losses	'	'	'
Balance at the beginning of the period	-24.5	-24.2	'
Balance at the end of the period	-24.5	-24.2	'
Net Goodwill	199.7	200.9	'
Europe, Middle East and Africa (EMEA)	'	'	'
Gross Balance	'	'	'
Balance at the beginning of the period	301.3	289.7	'
Foreign Currency Translation and Other	-21.3	6.1	'
Balance at the end of the period	280	295.8	'
Accumulated Impairment Losses	'	'	'
Net Goodwill	280	295.8	'
Asia-Pacific	'	'	'
Gross Balance	'	'	'
Balance at the beginning of the period	13.3	12.9	'
Foreign Currency Translation and Other	-0.2	0.2	'
Balance at the end of the period	13.1	13.1	'
Accumulated Impairment Losses	'	'	'
Net Goodwill	$13.10	$13.10	'

Accounting_Policies_Details_2

Accounting Policies (Details 2) (USD $)	3 Months Ended		9 Months Ended
In Millions, unless otherwise specified	Sep. 28, 2014	Sep. 29, 2013	Sep. 28, 2014	Sep. 29, 2013	Dec. 31, 2013
Intangible assets subject to amortization	'	'	'	'	'
Gross Carrying Amount	$195.20	'	$195.20	'	$199
Accumulated Amortization	-119.5	'	-119.5	'	-108.5
Net Carrying Amount	75.7	'	75.7	'	90.5
Indefinite-lived intangible assets	'	'	'	'	'
Indefinite-lived intangible assets	40.7	'	40.7	'	41.9
Intangible assets	'	'	'	'	'
Gross Carrying Amount	235.9	'	235.9	'	240.9
Accumulated Amortization	-119.5	'	-119.5	'	-108.5
Net Carrying Amount	116.4	'	116.4	'	132.4
Weighted-average remaining life	'	'	'8 years 1 month 6 days	'	'
Aggregate amortization expense for amortized intangible assets	3.7	3.7	11.1	11	'
Future amortization expense	'	'	'	'	'
Future amortization expense for remainder of 2014	3.2	'	3.2	'	'
Future amortization expense, 2015	14	'	14	'	'
Future amortization expense, 2016	13.6	'	13.6	'	'
Future amortization expense, 2017	13.2	'	13.2	'	'
Future amortization expense, 2018	9.8	'	9.8	'	'
Patents	'	'	'	'	'
Intangible assets subject to amortization	'	'	'	'	'
Gross Carrying Amount	16.3	'	16.3	'	16.6
Accumulated Amortization	-13.1	'	-13.1	'	-12.6
Net Carrying Amount	3.2	'	3.2	'	4
Intangible assets	'	'	'	'	'
Accumulated Amortization	-13.1	'	-13.1	'	-12.6
Weighted-average remaining life	'	'	'5 years 2 months 12 days	'	'
Customer relationships	'	'	'	'	'
Intangible assets subject to amortization	'	'	'	'	'
Gross Carrying Amount	130.1	'	130.1	'	133
Accumulated Amortization	-84.5	'	-84.5	'	-76.4
Net Carrying Amount	45.6	'	45.6	'	56.6
Intangible assets	'	'	'	'	'
Accumulated Amortization	-84.5	'	-84.5	'	-76.4
Weighted-average remaining life	'	'	'4 years 9 months 18 days	'	'
Technology	'	'	'	'	'
Intangible assets subject to amortization	'	'	'	'	'
Gross Carrying Amount	26.6	'	26.6	'	26.9
Accumulated Amortization	-12.3	'	-12.3	'	-10.9
Net Carrying Amount	14.3	'	14.3	'	16
Intangible assets	'	'	'	'	'
Accumulated Amortization	-12.3	'	-12.3	'	-10.9
Weighted-average remaining life	'	'	'11 years 1 month 6 days	'	'
Trade Names	'	'	'	'	'
Intangible assets subject to amortization	'	'	'	'	'
Gross Carrying Amount	13.4	'	13.4	'	13.7
Accumulated Amortization	-3.9	'	-3.9	'	-3
Net Carrying Amount	9.5	'	9.5	'	10.7
Intangible assets	'	'	'	'	'
Accumulated Amortization	-3.9	'	-3.9	'	-3
Weighted-average remaining life	'	'	'10 years 3 months 18 days	'	'
Other	'	'	'	'	'
Intangible assets subject to amortization	'	'	'	'	'
Gross Carrying Amount	8.8	'	8.8	'	8.8
Accumulated Amortization	-5.7	'	-5.7	'	-5.6
Net Carrying Amount	3.1	'	3.1	'	3.2
Intangible assets	'	'	'	'	'
Accumulated Amortization	($5.70)	'	($5.70)	'	($5.60)
Weighted-average remaining life	'	'	'38 years 3 months 18 days	'	'

Accounting_Policies_Details_3

Accounting Policies (Details 3) (USD $)	3 Months Ended		9 Months Ended
In Millions, except Share data, unless otherwise specified	Sep. 28, 2014	Sep. 29, 2013	Sep. 28, 2014	Sep. 29, 2013
			item
Stock-based compensation	'	'	'	'
Number of stock incentive plans	'	'	1	'
Shipping and Handling	'	'	'	'
Shipping and handling costs included in selling, general and administrative expense	$15.80	$15.90	$46.30	$45.60
Research and Development	'	'	'	'
Research and development costs included in selling, general, and administrative expense	$5.30	$5.20	$17.20	$16.10
Nonqualified stock options | Class A	'	'	'	'
Stock-based compensation	'	'	'	'
Minimum exercise price as percentage of fair market value of common stock on grant date	'	'	100.00%	'
2004 Stock Incentive Plan | Stock options	'	'	'	'
Stock-based compensation	'	'	'	'
Vesting period	'	'	'4 years	'
Percentage of stock awards becoming exercisable	'	'	25.00%	'
Expiration period	'	'	'10 years	'
Awards issued during the period (in shares)	'	'	'	349,867
Fair value assumptions	'	'	'	'
Expected life	'	'	'6 years	'6 years
Expected stock price volatility (as a percent)	'	'	37.50%	40.30%
Expected dividend yield (as a percent)	'	'	1.00%	1.00%
Risk-free interest rate (as a percent)	'	'	1.90%	1.70%
Weighted average grant-date fair value (in dollars per share)	'	'	$20.04	$20.30
2004 Stock Incentive Plan | Stock options | Granted in 2014	'	'	'	'
Stock-based compensation	'	'	'	'
Vesting period	'	'	'3 years	'
Percentage of stock awards becoming exercisable	'	'	33.00%	'
Awards issued during the period (in shares)	'	'	114,211	'
2004 Stock Incentive Plan | Restricted stock	'	'	'	'
Stock-based compensation	'	'	'	'
Vesting period	'	'	'3 years	'
Percentage of stock awards becoming exercisable	'	'	33.00%	'
Awards issued during the period (in shares)	'	'	'	131,510
2004 Stock Incentive Plan | Restricted stock | Granted in 2014	'	'	'	'
Stock-based compensation	'	'	'	'
Vesting period	'	'	'2 years	'
Percentage of stock awards becoming exercisable	'	'	50.00%	'
Awards issued during the period (in shares)	'	'	150,577	'
2004 Stock Incentive Plan | Performance stock units	'	'	'	'
Stock-based compensation	'	'	'	'
Vesting period	'	'	'3 years	'
Performance period of revenue to measure compound annual growth rate	'	'	'3 years	'
Awards issued during the period (in shares)	'	'	117,619	'
2004 Stock Incentive Plan | Performance stock units | Class A | Minimum	'	'	'	'
Stock-based compensation	'	'	'	'
Percentage of target number of shares that may be earned by recipient	'	'	0.00%	'
2004 Stock Incentive Plan | Performance stock units | Class A | Maximum	'	'	'	'
Stock-based compensation	'	'	'	'
Percentage of target number of shares that may be earned by recipient	'	'	200.00%	'
2004 Stock Incentive Plan | Deferred shares	'	'	'	'
Stock-based compensation	'	'	'	'
Vesting period	'	'	'3 years	'
Vesting rate per year for maximum vesting period	'	'	0.33	'
2004 Stock Incentive Plan | Deferred shares | Granted in 2014	'	'	'	'
Stock-based compensation	'	'	'	'
Vesting period	'	'	'2 years	'
Percentage of stock awards becoming exercisable	'	'	50.00%	'
Management Stock Purchase Plan | Class A	'	'	'	'
Stock-based compensation	'	'	'	'
Shares authorized	2,000,000	'	2,000,000	'
Management Stock Purchase Plan | Restricted stock units (RSUs)	'	'	'	'
Stock-based compensation	'	'	'	'
Granted (in shares)	'	'	30,561	44,777
Fair value assumptions	'	'	'	'
Expected life	'	'	'3 years	'3 years
Expected stock price volatility (as a percent)	'	'	31.20%	34.10%
Expected dividend yield (as a percent)	'	'	0.90%	0.90%
Risk-free interest rate (as a percent)	'	'	0.70%	0.40%
Weighted average grant-date fair value (in dollars per share)	'	'	$22.57	$18.05
Management Stock Purchase Plan | Restricted stock units (RSUs) | Minimum	'	'	'	'
Stock-based compensation	'	'	'	'
Vesting period	'	'	'3 years	'
Management Stock Purchase Plan | Restricted stock units (RSUs) | Maximum	'	'	'	'
Stock-based compensation	'	'	'	'
Vesting period	'	'	'3 years	'
Management Stock Purchase Plan | Restricted stock units (RSUs) | Class A	'	'	'	'
Stock-based compensation	'	'	'	'
Number of common shares for each unit of award held	'	'	1	'
Exercise price as percentage of fair market value of common stock on grant date	'	'	67.00%	'

Discontinued_Operations_Detail

Discontinued Operations (Details) (Austroflex, USD $)	0 Months Ended	3 Months Ended	9 Months Ended
In Millions, unless otherwise specified	Aug. 01, 2013	Sep. 29, 2013	Sep. 29, 2013
Austroflex	'	'	'
Discontinued Operations	'	'	'
Proceeds from sale of outstanding shares of an indirectly wholly-owned subsidiary	$7.90	'	'
Loss after tax on disposal of the business	2.2	'	'
Pretax loss	'	2.1	2.4
Revenues	'	$1.80	$9.50

Financial_Instruments_and_Deri2

Financial Instruments and Derivative Instruments (Details) (Fair value measured on a recurring basis, USD $)	Sep. 28, 2014	Dec. 31, 2013
In Millions, unless otherwise specified
Total	'	'
Assets	'	'
Plan asset for deferred compensation	$4.10	$4.60
Total assets	4.1	4.6
Liabilities	'	'
Plan liability for deferred compensation	4.1	4.6
Contingent consideration	2.2	4.4
Total liabilities	6.3	9
Quoted Prices in Active Markets for Identical Assets (Level 1)	'	'
Assets	'	'
Plan asset for deferred compensation	4.1	4.6
Total assets	4.1	4.6
Liabilities	'	'
Plan liability for deferred compensation	4.1	4.6
Total liabilities	4.1	4.6
Significant Unobservable Inputs (Level 3)	'	'
Liabilities	'	'
Contingent consideration	2.2	4.4
Total liabilities	$2.20	$4.40

Financial_Instruments_and_Deri3

Financial Instruments and Derivative Instruments (Details 2)	3 Months Ended			12 Months Ended			9 Months Ended
In Millions, unless otherwise specified	Sep. 28, 2014	Mar. 30, 2014	Jun. 30, 2013	Dec. 31, 2013	Jan. 30, 2012	Jan. 30, 2012	Sep. 28, 2014
	Tekmar	Tekmar	Tekmar	Tekmar	Tekmar	Tekmar	Contingent consideration
	USD ($)	USD ($)	USD ($)	USD ($)	USD ($)	CAD	USD ($)
Reconciliation of changes in fair value of all financial assets and liabilities	'	'	'	'	'	'	'
Balance at the beginning of the period	'	'	'	'	'	'	$4.40
Settlements	'	'	'	'	'	'	-2.2
Balance at the ending of the period	'	'	'	'	'	'	2.2
Total realized and unrealized (gains) losses included in Net earnings adjustments	'	'	'	'	'	'	0.1
Total realized and unrealized (gains) losses included in Comprehensive income	'	'	'	'	'	'	-0.1
Initial purchase price paid	'	'	'	'	'	18	'
Contingent liability of the acquisition date fair value	'	'	'	'	5.1	'	'
Increase in fair value of contingent liability based on revised estimates of the fair value of the contingent consideration	0.1	'	'	1	'	'	'
Portion of contingent consideration paid on achievement of performance metrics	'	$2.20	$1.20	'	'	'	'

Financial_Instruments_and_Deri4

Financial Instruments and Derivative Instruments (Details 3)	9 Months Ended
	Sep. 28, 2014
Derivative instruments	'
Percentage of projected intercompany purchases hedged by forward exchange contracts	50.00%
Period of projected intercompany purchase transactions	'12 months

Financial_Instruments_and_Deri5

Financial Instruments and Derivative Instruments (Details 4) (USD $)	Sep. 28, 2014	Dec. 31, 2013
In Millions, unless otherwise specified
Long-term debt	'	'
Gross carrying amount	$305.70	$307.70
Estimated fair value	$328.60	$333.40
5.85% Senior notes due 2016	'	'
Senior notes	'	'
Interest rate (as a percent)	5.85%	'
5.05% Senior notes due 2020	'	'
Senior notes	'	'
Interest rate (as a percent)	5.05%	'

Restructuring_and_Other_Charge2

Restructuring and Other Charges, Net (Details) (USD $)	3 Months Ended		9 Months Ended
In Millions, unless otherwise specified	Sep. 28, 2014	Sep. 29, 2013	Sep. 28, 2014	Sep. 29, 2013
Restructuring and other charges	'	'	'	'
Total restructuring and other charges, net	$0.40	$2.80	$7.20	$7
Total restructuring and other charges, net	0.4	2.8	7.2	7
Corporate	'	'	'	'
Restructuring and other charges	'	'	'	'
Total restructuring and other charges, net	'	'	0.8	'
Americas	'	'	'	'
Restructuring and other charges	'	'	'	'
Total restructuring and other charges, net	'	'	2.3	0.3
Europe, Middle East and Africa (EMEA)	'	'	'	'
Restructuring and other charges	'	'	'	'
Total restructuring and other charges, net	0.4	2.8	4.1	6.7
2013 Actions	'	'	'	'
Restructuring and other charges	'	'	'	'
Net pre-tax restructuring charges, expected to be recorded through fiscal 2014	'	'	10.4	'
Total expected pre-tax charges reduced	'	'	14.7	'
Total expected restructuring and related costs (after tax)	'	'	7.3	'
Net after tax charges	0.3	'	2	'
Total restructuring and other charges, net	0.4	'	2.9	'
Other Actions	'	'	'	'
Restructuring and other charges	'	'	'	'
Total restructuring and other charges, net	'	2.8	4.3	7
Remaining expected costs	'	'	$0	'

Restructuring_and_Other_Charge3

Restructuring and Other Charges, Net (Details 2) (USD $)

3 Months Ended

9 Months Ended

3 Months Ended

9 Months Ended

12 Months Ended

3 Months Ended

9 Months Ended

12 Months Ended

3 Months Ended

3 Months Ended

9 Months Ended

3 Months Ended

9 Months Ended

In Millions, unless otherwise specified

Sep. 28, 2014

Sep. 29, 2013

Sep. 28, 2014

Sep. 29, 2013

Sep. 28, 2014

Sep. 28, 2014

Jun. 29, 2014

Mar. 30, 2014

Sep. 28, 2014

Dec. 31, 2013

Sep. 28, 2014

Jun. 29, 2014

Mar. 30, 2014

Sep. 28, 2014

Jun. 29, 2014

Mar. 30, 2014

Sep. 28, 2014

Dec. 31, 2013

Jun. 29, 2014

Sep. 28, 2014

Mar. 30, 2014

Sep. 28, 2014

Mar. 30, 2014

Sep. 28, 2014

2013 Actions

Europe, Middle East and Africa (EMEA)

Europe, Middle East and Africa (EMEA)

Europe, Middle East and Africa (EMEA)

Europe, Middle East and Africa (EMEA)

Europe, Middle East and Africa (EMEA)

Severance

Severance

Severance

Severance

Severance

Severance

Severance

Severance

Legal and consultancy

Legal and consultancy

Asset write-downs

Asset write-downs

Facility exit and other

Facility exit and other

2013 Actions

2013 Actions

2013 Actions

2013 Actions

2013 Actions

Europe

Europe

Europe

Europe, Middle East and Africa (EMEA)

Europe, Middle East and Africa (EMEA)

Europe, Middle East and Africa (EMEA)

Europe, Middle East and Africa (EMEA)

Europe, Middle East and Africa (EMEA)

Europe, Middle East and Africa (EMEA)

Europe, Middle East and Africa (EMEA)

Europe, Middle East and Africa (EMEA)

Europe, Middle East and Africa (EMEA)

Europe, Middle East and Africa (EMEA)

Europe, Middle East and Africa (EMEA)

2013 Actions

2013 Actions

2013 Actions

2013 Actions

2013 Actions

2013 Actions

2013 Actions

2013 Actions

2013 Actions

2013 Actions

2013 Actions

2013 Actions

2013 Actions

2013 Actions

Restructuring reserve

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Balance at the beginning of the period

'

'

'

'

'

'

'

'

'

'

$2.80

$2.10

$2

'

'

'

'

'

'

'

'

'

'

'

Net pre-tax restructuring charges

0.4

2.8

7.2

7

'

0.4

2.1

0.4

'

4.1

0.4

2.1

0.4

0.4

2

0.1

'

4.1

0.1

'

0.2

'

0.1

'

Utilization and foreign currency impact

'

'

'

'

'

'

'

'

'

'

-0.9

-1.4

-0.3

'

'

'

'

'

'

'

'

'

'

'

Balance at the ending of the period

'

'

'

'

'

'

'

'

'

'

2.3

2.8

2.1

'

'

'

'

'

'

'

'

'

'

'

Summary of total expected, incurred and remaining pre-tax costs

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Expected costs

'

'

'

'

10.4

0

'

'

0

'

'

'

'

7.5

'

'

7.5

'

'

0.1

'

1.7

'

1.1

Costs incurred

-0.4

-2.8

-7.2

-7

'

-0.4

-2.1

-0.4

'

-4.1

-0.4

-2.1

-0.4

-0.4

-2

-0.1

'

-4.1

-0.1

'

-0.2

'

-0.1

'

Remaining costs

'

'

'

'

'

'

'

'

$3.40

'

'

'

'

'

'

'

$0.90

'

'

'

'

$1.50

'

$1

Earnings_per_Share_Details

Earnings per Share (Details) (USD $)	3 Months Ended		9 Months Ended
In Millions, except Share data, unless otherwise specified	Sep. 28, 2014	Sep. 29, 2013	Sep. 28, 2014	Sep. 29, 2013	Apr. 30, 2013
Net income:	'	'	'	'	'
Continuing operations	$22.60	$17.50	$58	$52.70	'
Discontinued operations	'	-2.1	'	-2.3	'
NET INCOME	22.6	15.4	58	50.4	'
Shares	'	'	'	'	'
Shares	35,300,000	35,400,000	35,300,000	35,500,000	'
Per Share Amount	'	'	'	'	'
Continuing operations (in dollars per share)	$0.64	$0.49	$1.64	$1.48	'
Discontinued operations (in dollars per share)	'	($0.06)	'	($0.06)	'
NET INCOME (in dollars per share)	$0.64	$0.43	$1.64	$1.42	'
Dilutive securities, principally common stock options	'	'	'	'	'
Common stock equivalents (in shares)	100,000	200,000	100,000	100,000	'
Net Income	'	'	'	'	'
Continuing operations	22.6	17.5	58	52.7	'
(Loss) income from discontinued operations, net of tax	'	-2.1	'	-2.3	'
Net income	22.6	15.4	58	50.4	'
Weighted average number of shares:	'	'	'	'	'
Weighted average number of shares	35,400,000	35,600,000	35,400,000	35,600,000	'
Per Share Amount	'	'	'	'	'
Continuing operations (in dollars per share)	$0.64	$0.49	$1.64	$1.48	'
Discontinued operations (in dollars per share)	'	($0.06)	'	($0.07)	'
Net income (in dollars per share)	$0.64	$0.43	$1.64	$1.41	'
Securities not included in the computation of diluted EPS	'	'	'	'	'
Options to purchase shares of Class A common stock	300,000	200,000	300,000	300,000	'
Number of shares of the entity's Class A common stock authorized to be repurchased	'	'	'	'	90
Number of shares of Class A common stock repurchased	149,000	'	496,000	402,000	'
Cost of shares of Class A common stock repurchased	$9.10	'	$29.10	$20	'

Segment_Information_Details

Segment Information (Details) (USD $)	3 Months Ended		9 Months Ended
In Millions, unless otherwise specified	Sep. 28, 2014	Sep. 29, 2013	Sep. 28, 2014	Sep. 29, 2013	Dec. 31, 2013
			item
Segment Information	'	'	'	'	'
Number of geographic segments	'	'	3	'	'
Number of operating segments	'	'	3	'	'
Segment information	'	'	'	'	'
Net Sales	$376	$371.80	$1,137.20	$1,097.50	'
Operating income (loss)	42.7	30.2	105.1	94.4	'
Interest income	0.1	0.1	0.4	0.4	'
Interest expense	-4.8	-5.1	-14.6	-16.6	'
Other income (expense), net	-1.6	-0.3	-1.9	-1.7	'
INCOME FROM CONTINUING OPERATIONS BEFORE INCOME TAXES	36.4	24.9	89	76.5	'
Capital Expenditures	5.5	4.6	16.1	22.6	'
Depreciation and Amortization	11.7	12.1	35.8	36.4	'
Identifiable Assets (at end of period)	1,676.70	1,690.40	1,676.70	1,690.40	1,740.20
Property, plant and equipment, net (at end of period)	202.1	219.4	202.1	219.4	219.9
Reportable segments	'	'	'	'	'
Segment information	'	'	'	'	'
Operating income (loss)	50.2	36.9	126.8	115.7	'
Corporate	'	'	'	'	'
Segment information	'	'	'	'	'
Operating income (loss)	-7.5	-6.7	-21.7	-21.3	'
Intersegment sales	'	'	'	'	'
Segment information	'	'	'	'	'
Net Sales	41.3	43.6	132.2	140.4	'
Americas	'	'	'	'	'
Segment information	'	'	'	'	'
Net Sales	228.6	220.5	689.5	657.9	'
Capital Expenditures	2.5	2.4	7.4	15.2	'
Depreciation and Amortization	4.8	5.2	14.5	15.3	'
Identifiable Assets (at end of period)	696.7	703.6	696.7	703.6	'
Property, plant and equipment, net (at end of period)	82.8	84.7	82.8	84.7	'
Americas | U.S.	'	'	'	'	'
Segment information	'	'	'	'	'
Net Sales	207.8	198	631.5	592.4	'
Property, plant and equipment, net (at end of period)	78.5	79.7	78.5	79.7	'
Americas | Reportable segments	'	'	'	'	'
Segment information	'	'	'	'	'
Operating income (loss)	33.4	21.5	85	74.3	'
Americas | Intersegment sales	'	'	'	'	'
Segment information	'	'	'	'	'
Net Sales	1.5	1.3	4.6	3.9	'
EMEA	'	'	'	'	'
Segment information	'	'	'	'	'
Net Sales	136.4	142.7	419.4	416	'
Capital Expenditures	2.7	2	7.8	6.3	'
Depreciation and Amortization	6.4	6.4	19.8	19.3	'
Identifiable Assets (at end of period)	840.8	864.5	840.8	864.5	'
Property, plant and equipment, net (at end of period)	105.8	120.1	105.8	120.1	'
EMEA | Reportable segments	'	'	'	'	'
Segment information	'	'	'	'	'
Operating income (loss)	15.1	13.4	37.1	34.1	'
EMEA | Intersegment sales	'	'	'	'	'
Segment information	'	'	'	'	'
Net Sales	3.3	2.6	10.7	7.7	'
Asia Pacific	'	'	'	'	'
Segment information	'	'	'	'	'
Net Sales	11	8.6	28.3	23.6	'
Capital Expenditures	0.3	0.2	0.9	1.1	'
Depreciation and Amortization	0.5	0.5	1.5	1.8	'
Identifiable Assets (at end of period)	139.2	122.3	139.2	122.3	'
Property, plant and equipment, net (at end of period)	13.5	14.6	13.5	14.6	'
Asia Pacific | Reportable segments	'	'	'	'	'
Segment information	'	'	'	'	'
Operating income (loss)	1.7	2	4.7	7.3	'
Asia Pacific | Intersegment sales	'	'	'	'	'
Segment information	'	'	'	'	'
Net Sales	$36.50	$39.70	$116.90	$128.80	'

Accumulated_Other_Comprehensiv2

Accumulated Other Comprehensive Income (Loss) (Details) (USD $)	Sep. 28, 2014	Dec. 31, 2013	Sep. 28, 2014	Jun. 29, 2014	Mar. 30, 2014	Sep. 29, 2013	Jun. 30, 2013	Mar. 31, 2013	Sep. 28, 2014	Jun. 29, 2014	Mar. 30, 2014	Sep. 29, 2013	Jun. 30, 2013	Mar. 31, 2013	Sep. 28, 2014	Jun. 29, 2014	Mar. 30, 2014	Sep. 29, 2013	Jun. 30, 2013	Mar. 31, 2013
In Millions, unless otherwise specified			Foreign Currency Translation	Foreign Currency Translation	Foreign Currency Translation	Foreign Currency Translation	Foreign Currency Translation	Foreign Currency Translation	Pension Adjustment	Pension Adjustment	Pension Adjustment	Pension Adjustment	Pension Adjustment	Pension Adjustment	Accumulated Other Comprehensive Income (Loss)	Accumulated Other Comprehensive Income (Loss)	Accumulated Other Comprehensive Income (Loss)	Accumulated Other Comprehensive Income (Loss)	Accumulated Other Comprehensive Income (Loss)	Accumulated Other Comprehensive Income (Loss)
Changes in accumulated other comprehensive income (loss)	'	'	'	'	'	'	'	'	'	'	'	'	'	'	'	'	'	'	'	'
Balance at the beginning of the period	($51)	$12	$29.30	$33.60	$37.90	$2	($5.50)	$14.40	($25.60)	($25.70)	($25.90)	($24.90)	($25)	($25.20)	$3.70	$7.90	$12	($22.90)	($30.50)	($10.80)
Change in period	'	'	-44.4	-4.3	-4.3	24.4	7.5	-19.9	-10.3	0.1	0.2	0.1	0.1	0.2	-54.7	-4.2	-4.1	24.5	7.6	-19.7
Balance at the end of the period	($51)	$12	($15.10)	$29.30	$33.60	$26.40	$2	($5.50)	($35.90)	($25.60)	($25.70)	($24.80)	($24.90)	($25)	($51)	$3.70	$7.90	$1.60	($22.90)	($30.50)

Debt_Details

Debt (Details) (USD $)	9 Months Ended
In Millions, unless otherwise specified	Sep. 28, 2014
Credit Agreement	'
Credit Agreement	'
Multi-currency borrowing capacity	$500
Term of senior unsecured revolving credit facility	'5 years
Potential additional borrowing capacity	500
Sublimit on letters of credit	100
Unused and available credit under the credit agreement	476.4
Stand-by letters of credit outstanding	$23.60
Eurocurrency rate loans | LIBOR	'
Credit Agreement	'
Variable interest rate basis	'LIBOR
Eurocurrency rate loans | LIBOR | Minimum	'
Credit Agreement	'
Interest rate added to base rate (as a percent)	0.98%
Eurocurrency rate loans | LIBOR | Maximum	'
Credit Agreement	'
Interest rate added to base rate (as a percent)	1.45%
Base rate loans and swing line loans | LIBOR	'
Credit Agreement	'
Interest rate added to base rate (as a percent)	1.00%
Variable interest rate basis	'LIBOR
Base rate loans and swing line loans | LIBOR | Minimum	'
Credit Agreement	'
Interest rate added to base rate (as a percent)	0.00%
Base rate loans and swing line loans | LIBOR | Maximum	'
Credit Agreement	'
Interest rate added to base rate (as a percent)	0.45%
Base rate loans and swing line loans | Federal funds	'
Credit Agreement	'
Interest rate added to base rate (as a percent)	0.50%
Variable interest rate basis	'Federal Funds Rate
Base rate loans and swing line loans | Prime Rate	'
Credit Agreement	'
Variable interest rate basis	'Prime Rate

Contingencies_and_Environmenta1

Contingencies and Environmental Remediation (Details) (USD $)	0 Months Ended	9 Months Ended
In Millions, unless otherwise specified	Dec. 12, 2013	Sep. 28, 2014	Dec. 31, 2013
Litigation contingencies	'	'	'
Reasonably possible loss in excess of the amount accrued for its legal contingencies	'	$5.80	'
Trabakoolas et al., v, Watts Water Technologies, Inc., et al.	'	'	'
Litigation contingencies	'	'	'
Total settlement amount	23	'	'
Possible loss	14	'	'
Insurance proceeds	9	9	'
Liability recorded	'	8.8	22.6
Liability recorded, current	'	'	12.7
Liability recorded, noncurrent	'	'	9.9
Insurance proceeds, current assets	'	'	9
Reduction in liability	'	$13.90	'
Period for payment of remaining liability	'	'4 years	'
Asbestos Litigation	'	'	'
Litigation contingencies	'	'	'
Number of lawsuits the entity is defending in different jurisdictions	'	59	'

Defined_Benefit_Plans_Details

Defined Benefit Plans (Details) (USD $)	3 Months Ended		9 Months Ended		0 Months Ended
In Millions, unless otherwise specified	Sep. 28, 2014	Sep. 29, 2013	Sep. 28, 2014	Sep. 29, 2013	15-May-14	15-May-14
					Minimum	Maximum
Defined Benefit Plans	'	'	'	'	'	'
Increase in pension liability	$17.10	'	$17.10	'	'	'
Increase in net loss	10.5	'	10.5	'	'	'
Net loss, tax benefits	6.6	'	6.6	'	'	'
Employee benefit plans	'	'	'	'	'	'
Term for settlement of liabilities to plan participants under SERP	'	'	'	'	'12 months	'24 months
Components of net periodic benefit cost	'	'	'	'	'	'
Service cost - administrative costs	0.2	0.1	0.5	0.3	'	'
Interest costs on benefits obligation	1.5	1.4	4.5	4.2	'	'
Expected return on assets	-1.5	-1.7	-4.5	-5.1	'	'
Net actuarial loss amortization	0.3	0.2	0.8	0.6	'	'
Net periodic benefit cost	0.5	'	1.3	'	'	'
Information related to the Company's pension funds cash flow	'	'	'	'	'	'
Employer contributions	'	'	0.6	0.6	'	'
Expected employer contributions in remainder of fiscal year	'	'	$0.20	'	'	'

Subsequent_Events_Details

Subsequent Events (Details) (Dividend Declared, USD $)	Oct. 27, 2014
Class A common stock	'
Subsequent events	'
Quarterly dividend declared (in dollars per share)	$0.15
Class B common stock	'
Subsequent events	'
Quarterly dividend declared (in dollars per share)	$0.15