Special Charges/Recoveries Charges Incurred to Date (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Oct. 01, 2017	Oct. 02, 2016	Oct. 01, 2017	Oct. 02, 2016	Jul. 02, 2017	Dec. 31, 2016	Jul. 03, 2016	Dec. 31, 2015
Restructuring Cost and Reserve [Line Items]
Recoveries of Restructuring Charges				$ 3,769
Restructuring Charges	$ 341	$ 2,252	$ 5,366	6,674
Contingent consideration revaluation			(12,200)
Special Charges, Net	341	2,252	5,366	6,674
Other Nonrecurring (Income) Expense	1,978	379	(5,809)	2,491
Restructuring and Related Cost, Incurred Cost	2,319	2,631	(443)	9,165
Restructuring Reserve	1,867	1,470	1,867	1,470	$ 2,118	$ 1,618	$ 691	$ 663
Payments for Restructuring	(592)	(1,473)	(5,117)	(5,867)
Two Thousands Sixteen Actions Restructuring Charges [Member]
Restructuring Cost and Reserve [Line Items]
Charges incurred to date	(7,413)		(7,413)
Two Thousands Seventeen Actions Restructuring Charges [Member] [Domain]
Restructuring Cost and Reserve [Line Items]
Charges incurred to date	(2,421)		(2,421)
Divestiture [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Charges			3,849
Acquisitions [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	1,786		1,923	2,652
Employee Severance [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	(51)	1,462	2,648	2,905
Employee Severance [Member] | Two Thousands Sixteen Actions Restructuring Charges [Member]
Restructuring Cost and Reserve [Line Items]
Charges incurred to date	(4,229)		(4,229)
Employee Severance [Member] | Two Thousands Seventeen Actions Restructuring Charges [Member] [Domain]
Restructuring Cost and Reserve [Line Items]
Charges incurred to date	(2,055)		(2,055)
Facility Closing [Member]
Restructuring Cost and Reserve [Line Items]
Recoveries of Restructuring Charges	392	790	2,718
Disposal Group, Not Discontinued Operation, Loss (Gain) on Write-down	192	379	619	(161)
Facility Closing [Member] | Two Thousands Sixteen Actions Restructuring Charges [Member]
Restructuring Cost and Reserve [Line Items]
Charges incurred to date	(3,184)		(3,184)
Facility Closing [Member] | Two Thousands Seventeen Actions Restructuring Charges [Member] [Domain]
Restructuring Cost and Reserve [Line Items]
Charges incurred to date	(366)		(366)
Energy [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	138	1,093	3,107	1,340
Contingent consideration revaluation			(12,200)
Other Nonrecurring (Income) Expense	192	379	(11,581)	2,489
Energy [Member] | Two Thousands Sixteen Actions Restructuring Charges [Member]
Restructuring Cost and Reserve [Line Items]
Charges incurred to date	(5,810)		(5,810)
Energy [Member] | Two Thousands Seventeen Actions Restructuring Charges [Member] [Domain]
Restructuring Cost and Reserve [Line Items]
Charges incurred to date	(463)		(463)
Energy [Member] | Acquisitions [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Charges				2,650
Energy [Member] | Employee Severance [Member]
Restructuring Cost and Reserve [Line Items]
Disposal Group, Not Discontinued Operation, Loss (Gain) on Write-down		400		2,700
Restructuring Charges	(89)	757	886	1,493
Energy [Member] | Employee Severance [Member] | Two Thousands Sixteen Actions Restructuring Charges [Member]
Restructuring Cost and Reserve [Line Items]
Charges incurred to date	(2,882)		(2,882)
Energy [Member] | Employee Severance [Member] | Two Thousands Seventeen Actions Restructuring Charges [Member] [Domain]
Restructuring Cost and Reserve [Line Items]
Charges incurred to date	(463)		(463)
Energy [Member] | Facility Closing [Member]
Restructuring Cost and Reserve [Line Items]
Recoveries of Restructuring Charges	227		2,221
Disposal Group, Not Discontinued Operation, Loss (Gain) on Write-down	192	379	619	(161)
Restructuring Charges		336		(153)
Energy [Member] | Facility Closing [Member] | Two Thousands Sixteen Actions Restructuring Charges [Member]
Restructuring Cost and Reserve [Line Items]
Charges incurred to date	(2,928)		(2,928)
Energy [Member] | Facility Closing [Member] | Two Thousands Seventeen Actions Restructuring Charges [Member] [Domain]
Restructuring Cost and Reserve [Line Items]
Charges incurred to date	0		0
Aerospace [Member] | Acquisitions [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Charges				0
Aerospace [Member] | Employee Severance [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Charges		705		1,412
Aerospace [Member] | Facility Closing [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Charges		454		3,922
Aerospace & Defense [Member] | Divestiture [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Charges			3,748
Corporate [Member]
Restructuring Cost and Reserve [Line Items]
Other Nonrecurring (Income) Expense	1,786	0	2,024	2
Corporate [Member] | Divestiture [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Charges			101
Corporate [Member] | Acquisitions [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	1,786		1,923	2
Corporate [Member] | Facility Closing [Member]
Restructuring Cost and Reserve [Line Items]
Disposal Group, Not Discontinued Operation, Loss (Gain) on Write-down				0
Advanced Flow Solutions [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	203	1,159	2,259	5,334
Other Nonrecurring (Income) Expense	0	$ 0	3,748	$ 0
Advanced Flow Solutions [Member] | Two Thousands Sixteen Actions Restructuring Charges [Member]
Restructuring Cost and Reserve [Line Items]
Charges incurred to date	(1,603)		(1,603)
Advanced Flow Solutions [Member] | Two Thousands Seventeen Actions Restructuring Charges [Member] [Domain]
Restructuring Cost and Reserve [Line Items]
Charges incurred to date	(1,958)		(1,958)
Advanced Flow Solutions [Member] | California Restructuring Plan [Member]
Restructuring Cost and Reserve [Line Items]
Charges incurred to date	(4,500)		(4,500)
Advanced Flow Solutions [Member] | Employee Severance [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	38		1,762
Advanced Flow Solutions [Member] | Employee Severance [Member] | Two Thousands Sixteen Actions Restructuring Charges [Member]
Restructuring Cost and Reserve [Line Items]
Charges incurred to date	(1,347)		(1,347)
Advanced Flow Solutions [Member] | Employee Severance [Member] | Two Thousands Seventeen Actions Restructuring Charges [Member] [Domain]
Restructuring Cost and Reserve [Line Items]
Charges incurred to date	(1,592)		(1,592)
Advanced Flow Solutions [Member] | Employee Severance [Member] | California Restructuring Plan [Member]
Restructuring Cost and Reserve [Line Items]
Charges incurred to date	(800)		(800)
Advanced Flow Solutions [Member] | Facility Closing [Member]
Restructuring Cost and Reserve [Line Items]
Recoveries of Restructuring Charges	165		497
Advanced Flow Solutions [Member] | Facility Closing [Member] | Two Thousands Sixteen Actions Restructuring Charges [Member]
Restructuring Cost and Reserve [Line Items]
Charges incurred to date	(256)		(256)
Advanced Flow Solutions [Member] | Facility Closing [Member] | Two Thousands Seventeen Actions Restructuring Charges [Member] [Domain]
Restructuring Cost and Reserve [Line Items]
Charges incurred to date	(366)		(366)
Advanced Flow Solutions [Member] | Facility Closing [Member] | California Restructuring Plan [Member]
Restructuring Cost and Reserve [Line Items]
Charges incurred to date	$ (3,700)		$ (3,700)