Goodwill and Other Intangible Assets (Tables)

12 Months Ended

Dec. 31, 2016

The changes in the carrying amount of goodwill by segment for the years ended December 31, 2016 and 2015 were as follows:

	Optoelectronic Components		Resistors & Inductors			Capacitors			Total

Balance at January 1, 2015	$	96,849	$	42,146		$	5,364		$	144,359
Goodwill impairment charges		-		-			(5,380	)		(5,380	)
Exchange rate effects		-		(751	)		16			(735	)
Balance at December 31, 2015	$	96,849	$	41,395		$	-		$	138,244
Sonntag acquisition		-		3,485			-			3,485
Exchange rate effects		-		(322	)		-			(322	)
Balance at December 31, 2016	$	96,849	$	44,558		$	-		$	141,407

Other intangible assets are as follows:

	December 31,
	2016			2015

Intangible Assets Subject to Amortization
(Definite-lived):
Patents and acquired technology	$	93,395		$	93,606
Capitalized software		53,807			53,401
Customer relationships		84,905			85,418
Tradenames		53,680			35,493
Non-competition agreements		1,266			2,261
		287,053			270,179
Accumulated amortization:
Patents and acquired technology		(81,807	)		(76,258	)
Capitalized software		(49,388	)		(47,394	)
Customer relationships		(42,787	)		(37,989	)
Tradenames		(27,460	)		(23,798	)
Non-competition agreements		(1,148	)		(1,841	)
		(202,590	)		(187,280	)
Net Intangible Assets Subject to Amortization		84,463			82,899

Intangible Assets Not Subject to Amortization
(Indefinite-lived):
Tradenames		-			20,359
	$	84,463		$	103,258

Estimated annual amortization expense of intangible assets on the balance sheet at December 31, 2016 for each of the next five years is as follows: