Intangibles (Tables)

9 Months Ended

Sep. 30, 2017

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Indefinite-Lived Intangible Assets

The company's intangibles consist of the following (in thousands):

	September 30, 2017				December 31, 2016
	Historical Cost		Accumulated Amortization		Historical Cost		Accumulated Amortization
Customer lists	$	54,402	$	51,481	$	49,362	$	45,797
Trademarks	26,598		—		24,091		—
Developed technology	7,913		6,576		7,287		5,969
Patents	5,571		5,562		5,512		5,487
License agreements	1,199		1,199		1,126		1,126
Other	1,162		1,145		1,162		1,138
Intangibles	$	96,845	$	65,963	$	88,540	$	59,517

Schedule of Finite-Lived Intangible Assets

The company's intangibles consist of the following (in thousands):

	September 30, 2017				December 31, 2016
	Historical Cost		Accumulated Amortization		Historical Cost		Accumulated Amortization
Customer lists	$	54,402	$	51,481	$	49,362	$	45,797
Trademarks	26,598		—		24,091		—
Developed technology	7,913		6,576		7,287		5,969
Patents	5,571		5,562		5,512		5,487
License agreements	1,199		1,199		1,126		1,126
Other	1,162		1,145		1,162		1,138
Intangibles	$	96,845	$	65,963	$	88,540	$	59,517