Intangible Assets (Tables)

3 Months Ended

Mar. 30, 2018

Goodwill and Intangible Assets Disclosure [Abstract]

Other Intangible Assets

Components of other intangible assets were (dollars in thousands):

	Finite Life									Indefinite Life
	Customer Relationships			Patents and Proprietary Technology			Trademarks, Trade Names and Other			Trade Names			Total
As of March 30, 2018
Cost	$	181,143		$	19,802		$	1,071		$	61,237		$	263,253
Accumulated amortization	(57,497		)	(8,327		)	(608		)	—			(66,432		)
Foreign currency translation	(6,983		)	(529		)	(61		)	(2,425		)	(9,998		)
Book value	$	116,663		$	10,946		$	402		$	58,812		$	186,823
Weighted average life in years	13			10			4			N/A

As of December 29, 2017
Cost	$	179,826		$	18,479		$	1,071		$	59,553		$	258,929
Accumulated amortization	(54,076		)	(7,795		)	(542		)	—			(62,413		)
Foreign currency translation	(9,186		)	(727		)	(61		)	(3,486		)	(13,460		)
Book value	$	116,564		$	9,957		$	468		$	56,067		$	183,056
Weighted average life in years	13			10			4			N/A

Future Amortization Expense

Estimated annual amortization expense based on the current carrying amount of other intangible assets is as follows (in thousands):

	2018		2019		2020		2021		2022		Thereafter
Estimated Amortization Expense	$	15,995	$	15,663	$	15,464	$	15,247	$	15,162	$	54,472

Goodwill Rollforward

Changes in the carrying amount of goodwill for each reportable segment were (in thousands): 

	Industrial		Process		Contractor		Total
Balance, December 29, 2017	$	161,673	$	97,971	$	19,145	$	278,789
Additions from business acquisitions	15,446		170		459		16,075
Foreign currency translation	2,464		759				3,223
Balance, March 30, 2018	$	179,583	$	98,900	$	19,604	$	298,087