Goodwill and Intangible Assets, Net (Tables)

12 Months Ended

Dec. 31, 2018

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Estimated Useful Lives for Intangible Assets

We provide for amortization primarily using the straight-line method by charges to income in amounts that allocate the intangible assets over their estimated useful lives as follows:



Asset Classification		Estimated Useful Life

Product rights⁽¹⁾		5 to 15 years
Customer-related intangible assets⁽²⁾		3 to 17 years
Noncompete agreements		3 to 5 years


(1)	Product rights comprise certain technologies, intellectual property, licenses, and trade names acquired from third parties.


(2)	Customer-related intangible assets are comprised of customer lists and customer relationships acquired from third parties.

Schedule of Intangible Assets Other Than Goodwill

Intangible assets other than goodwill consisted of the following (in thousands):



	December 31, 2018						December 31, 2017
	Cost		Accumulated Amortization		Net		Cost		Accumulated Amortization		Net
Product rights⁽¹⁾	27,060		19,153		7,907		32,558		25,251		7,307
Customer-related intangible assets⁽²⁾	77,015		43,352		33,663		80,398		44,382		36,016
Noncompete agreements	856		601		255		1,271		748		523
	$	104,931	$	63,106	$	41,825	$	114,227	$	70,381	$	43,846

The above table excludes fully amortized intangible assets for the periods presented.


(1)	Product rights comprise certain technologies, licenses and trade names acquired from third parties.


(2)	Customer-related intangible assets are comprised of customer lists and customer relationships acquired from third parties.

Schedule of Expected Amortization Expense

At December 31, 2018, the aggregate amortization expense associated with intangible assets is estimated to be as follows for each of the next five years and thereafter (in thousands):



	Amortization Expense

2019	$	8,450
2020	7,087
2021	6,232
2022	5,063
2023	3,330
Thereafter	11,663
	$	41,825

Schedule of Goodwill

The changes in the carrying amount of goodwill for the years ended December 31, 2018, 2017 and 2016, were as follows (in thousands):



	CAG			Water			LPD			Other		Consolidated Total
Balance as of December 31, 2015	$	145,191		$	13,038		$	14,174		$	6,531	$	178,934
Business combinations	1,720			—			—			—		1,720
Impact of changes in foreign currency exchange rates	(717		)	(2,148		)	439			—		(2,426		)
Balance as of December 31, 2016	$	146,194		$	10,890		$	14,613		$	6,531	$	178,228
Business combinations	13,541			—			—			—		13,541
Impact of changes in foreign currency exchange rates	6,501			1,061			542			—		8,104
Balance as of December 31, 2017	$	166,236		$	11,951		$	15,155		$	6,531	$	199,873
Business combinations	20,282			—			—			—		20,282
Impact of changes in foreign currency exchange rates	(4,132		)	(730		)	(804		)	—		(5,666		)
Balance as of December 31, 2018	$	182,386		$	11,221		$	14,351		$	6,531	$	214,489