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Shareholders' Equity and Long-Term Incentive Compensation - Summary of Reclassified Components of AOCI (Details) - USD ($) $ in Millions		3 Months Ended								12 Months Ended
	Mar. 30, 2016	Dec. 31, 2017	Sep. 30, 2017	Jul. 01, 2017	Apr. 01, 2017	Dec. 31, 2016	Oct. 01, 2016	Jul. 02, 2016	Apr. 02, 2016	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Amounts reclassified from each component of accumulated comprehensive income
Revenues		$ (387.0)	$ (348.5)	$ (349.7)	$ (340.6)	$ (395.3)	$ (345.0)	$ (371.4)	$ (360.6)	$ (1,425.8)	$ (1,472.3)	$ (1,559.0)
Cost of products sold										1,095.6	1,096.5	1,283.1
Interest Expense										17.1	14.8	22.0
Other expense, net										(2.0)	(0.3)	(10.0)
Income (loss) from continuing operations before income taxes										36.1	39.4	(154.3)
Income taxes										(47.9)	9.1	(2.7)
Income (loss) from continuing operations		$ (60.0)	$ (22.0)	$ 8.3	$ (10.3)	3.0	(6.6)	(6.5)	(20.2)	(84.0)	(30.3)	151.6
Selling, general and administrative										282.3	301.0	387.8
Gain on sale of dry cooling business										0.0	(18.4)	0.0
Gain (loss) on disposition of discontinued operations, net of tax										(5.3)	81.3	$ 5.2
Disposal Group, Disposed of by Sale, Not Discontinued Operations \| Dry Cooling Business
Amounts reclassified from each component of accumulated comprehensive income
Gain on sale of dry cooling business	$ (18.4)						$ (1.7)	$ (1.2)	$ (17.9)		(18.4)
Discontinued Operations, Disposed of by Sale \| Balcke Durr
Amounts reclassified from each component of accumulated comprehensive income
Gain (loss) on disposition of discontinued operations, net of tax						$ 78.6
Net Unrealized Gains (Losses) on Qualifying Cash Flow Hedges \| Amount Reclassified from AOCI
Amounts reclassified from each component of accumulated comprehensive income
Income (loss) from continuing operations before income taxes										4.9	(3.0)
Income taxes										1.9	(0.8)
Income (loss) from continuing operations										(3.0)	2.2
Net Unrealized Gains (Losses) on Qualifying Cash Flow Hedges \| FX forward contracts \| Amount Reclassified from AOCI
Amounts reclassified from each component of accumulated comprehensive income
Revenues										0.0	1.0
Net Unrealized Gains (Losses) on Qualifying Cash Flow Hedges \| Commodity contracts \| Amount Reclassified from AOCI
Amounts reclassified from each component of accumulated comprehensive income
Cost of products sold										(2.5)	2.0
Accumulated Net Gain (Loss) from Cash Flow Hedges Attributable to Parent [Member]
Amounts reclassified from each component of accumulated comprehensive income
Amounts reclassified from accumulated other comprehensive income										(3.0)	2.2
Accumulated Net Gain (Loss) from Cash Flow Hedges Attributable to Parent [Member] \| Interest Rate Swap [Member] \| Amount Reclassified from AOCI
Amounts reclassified from each component of accumulated comprehensive income
Interest Expense										0.3	0.0
Other expense, net										(2.7)	0.0
Pension and Postretirement Liability Adjustment
Amounts reclassified from each component of accumulated comprehensive income
Income taxes										0.7	0.4
Amounts reclassified from accumulated other comprehensive income										(1.1)	(0.6)
Pension and Postretirement Liability Adjustment \| Amount Reclassified from AOCI
Amounts reclassified from each component of accumulated comprehensive income
Selling, general and administrative										(1.8)	(1.0)
Accumulated Foreign Currency Adjustment Including Portion Attributable to Noncontrolling Interest \| Amount Reclassified from AOCI
Amounts reclassified from each component of accumulated comprehensive income
Income (loss) from continuing operations										0.0	(39.0)
Accumulated Foreign Currency Adjustment Including Portion Attributable to Noncontrolling Interest \| Amount Reclassified from AOCI \| Disposal Group, Disposed of by Sale, Not Discontinued Operations \| Dry Cooling Business
Amounts reclassified from each component of accumulated comprehensive income
Gain on sale of dry cooling business	$ (40.4)									0.0	(40.4)
Accumulated Foreign Currency Adjustment Including Portion Attributable to Noncontrolling Interest \| Amount Reclassified from AOCI \| Discontinued Operations, Disposed of by Sale \| Balcke Durr
Amounts reclassified from each component of accumulated comprehensive income
Gain (loss) on disposition of discontinued operations, net of tax										$ 0.0	$ 1.4