Discontinued Operations (Details) - USD ($) $ in Thousands, shares in Millions			3 Months Ended								12 Months Ended
		Dec. 11, 2017	Dec. 31, 2018	Sep. 28, 2018	Jun. 29, 2018	Mar. 30, 2018	Dec. 31, 2017	Sep. 29, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Disposal Group, Including Discontinued Operations, Statement of Income
Gain (Loss) on Disposition of Business											$ (4,337)	$ 308,388	$ 0
Income (loss) from discontinued operations, net of taxes			$ 2,912	$ (2,696)	$ (25,729)	$ (2,837)	$ 202,257	$ 2,082	$ 16,611	$ 3,097	(28,350)	224,047	(9,561)
Disposal Group, Including Discontinued Operation, Additional Disclosures [Abstract]
Cash Provided by (Used in) Operating Activities, Discontinued Operations											(5,600)	65,200	23,100
Cash Used in Investing Activities, Discontinued Operations												10,100	3,900
Proceeds from Sale of Short-term Investments					139,500						139,480	0	0
Expense Related to Distribution or Servicing and Underwriting Fees					$ 5,800
Fluid Handling [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Total consideration for sale		$ 860,600
Cash consideration for sale		$ 551,000
Shares consideration for sale, Shares		3.3
Net retirement liabilities as part of the sale		$ 168,000
Disposal Group, Including Discontinued Operations, Statement of Income
Net sales											0	436,682	461,294
Cost of sales											0	294,946	308,025
Selling, general and administrative expense	[1]										7,156	118,740	136,380
Divestiture-related expense, net	[2]										4,321	5,257	0
Restructuring and other related items	[3]										0	(6,768)	15,674
Operating income (loss)											(11,477)	24,507	1,215
Interest income	[4]										0	473	260
Gain (Loss) on Disposition of Business	[5]										(4,337)	308,388	0
Income (loss) from discontinued operations before income taxes											(15,814)	333,368	1,475
Income taxes											12,536	109,321	11,036
Income (loss) from discontinued operations, net of taxes											$ (28,350)	224,047	$ (9,561)
Disposal Group, Including Discontinued Operation, Additional Disclosures [Abstract]
Gain (Loss) on Disposition of Assets												$ 12,000

[1] Pursuant to the Purchase Agreement, the Company retained its asbestos-related contingencies and insurance coverages. However, as the Company did not retain an interest in the ongoing operations of the business subject to the contingencies, the Company has classified asbestos-related activity in its Consolidated Statements of Income as part of (Loss) income from discontinuing operations. See Note 17, “Commitments and Contingencies” for further information.

[2] Primarily related to professional and consulting fees associated with due diligence and preparation of regulatory filings, as well as employee benefit arrangements and other disposition-related activities.

[3] During the year ended December 31, 2017, the Company recorded a gain of approximately $12 million from the sale of a facility that was previously closed as part of restructuring activities.

[4] Interest expense has not been allocated to the discontinued operations.

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