Intangible Assets (Tables)

12 Months Ended

Dec. 31, 2016

Schedule of Goodwill [Table Text Block]

Goodwill activity for each of the Company's two reportable segments that carry goodwill, Specialty Chemicals and Engineered Materials (SCEM) and Advanced Materials Handling (AMH), for the years ended December 31, 2016 and 2015 is shown below:

(In thousands)	SCEM			AMH			Total
December 31, 2014	$	293,260		$	47,483		$	340,743
Addition due to purchase accounting adjustments	4,972			—			4,972
Other, including foreign currency translation	(3,532		)	(72		)	(3,604		)
December 31, 2015	294,700			47,411			342,111
Addition due to purchase accounting adjustments	4,434			—			4,434
Other, including foreign currency translation	(1,276		)	—			(1,276		)
December 31, 2016	$	297,858		$	47,411		$	345,269

Schedule of Acquired Finite-Lived Intangible Assets by Major Class [Table Text Block]

Identifiable intangible assets at December 31, 2016 and 2015 consist of the following:

2016
(In thousands)	Gross  carrying Amount		Accumulated amortization		Net  carrying value		Weighted average life in years
Developed technology	202,591		126,077		76,514		6.7
Trademarks and trade names	16,661		12,617		4,044		9.9
Customer relationships	216,918		90,581		126,337		10.3
Other	18,585		7,932		10,653		6.5
	$	454,755	$	237,207	$	217,548	8.5

2015
(In thousands)	Gross  carrying amount		Accumulated amortization		Net  carrying value		Weighted average life in years
Developed technology	202,732		102,883		99,849		6.7
Trademarks and trade names	16,676		10,681		5,995		9.9
Customer relationships	218,283		72,948		145,335		10.3
Other	15,135		7,372		7,763		5.7
	$	452,826	$	193,884	$	258,942	8.5

Estimated Future Amortization Expense

The amortization expense for each of the five succeeding years and thereafter relating to intangible assets currently recorded in the Company's consolidated balance sheets is estimated to be the following at December 31, 2016:

Fiscal year ending December 31	(In thousands)
2017	$	43,101
2018	42,721
2019	40,480
2020	25,694
2021	18,951
Thereafter	46,601
	$	217,548

Schedule Of Amortization Of Intangibles Table [Text Block]

The table below sets forth the amortization expense for the years ended December 31, 2016, 2015, and 2014:

(In thousands)	2016		2015		2014
Amortization expense	$	44,263	$	47,349	$	37,067

The following table presents amortization of intangibles for each of the Company’s segments for the years ended December 31, 2016, 2015 and 2014:

(In thousands)	2016		2015		2014
Amortization of intangibles:
SCEM	$	40,034	$	42,909	$	32,099
AMH	4,229		4,440		4,968
Total amortization of intangibles	$	44,263	$	47,349	$	37,067