Goodwill and Intangible Assets

12 Months Ended

Dec. 31, 2018

Goodwill and Intangible Assets Disclosure [Abstract]

Changes in the carrying amount of goodwill for the year ended December 31, 2018 and December 31, 2017 are as follows:


(in thousands)	Amount
Balance as of December 31, 2016	$	—
Goodwill as a result of the Business Combination	9,402
Balance as of December 31, 2017	9,402
Measurement period adjustment	(2,807)
Foreign Currency translation	75
Balance as of December 31, 2018	$	6,670

During the year ended December 31, 2018, there was an adjustment made to the consideration payable to holders of Tecnidex which resulted in a measurement period adjustment of $2.8 million to the purchase price allocation.

The Company’s other intangible assets at December 31, 2018 and December 31, 2017 consisted of the following:


	December 31, 2018												December 31, 2017
(in thousands)	Gross Carrying Amount		Accumulated Amortization		Impairment		Net		Gross Carrying Amount		Accumulated Amortization		Impairment		Net
Other intangible assets:
Developed technology	$	759,290	$	(134,151)	$	—	$	625,139	$	759,374	$	(94,886)	$	—	$	664,488
In-process research and development	39,000		(5,055)		—		33,945		39,000		(2,889)		—		36,111
Trade name	28,507		—		(2,600)		25,907		29,816		—		—		29,816
Service provider network	2,000		—		—		2,000		2,000		—		—		2,000
Customer relationships	19,872		(2,198)		—		17,674		20,306		(806)		—		19,500
Software	9,405		(2,161)		—		7,244		1,274		(404)		—		870
Software not yet placed in service	—		—		—		—		5,022		—		—		5,022
Other	100		(42)		—		58		100		(25)		—		75
Total intangible assets	$	858,174	$	(143,607)	$	(2,600)	$	711,967	$	856,892	$	(99,010)	$	—	$	757,882

During the Company's annual impairment testing conducted for the year ended December 31, 2016, the Company recorded an impairment charge of $9.5 million on its AgroFresh and SmartFresh trade names. The annual impairment testing for the year ended December 31, 2017 resulted in no indicators of impairment. During the Company's annual impairment testing conducted for the year ended December 31, 2018, the Company recorded an impairment charge of $2.6 million on its SmartFresh trade name.

The weighted-average amortization period remaining for the finite-lived intangible assets is 15.16 years. The weighted-average amortization period remaining for developed technology, customer relationships, in-process R&D, software, and other is 16.3, 13.5, 15.8, 2.2, and 3.5 years, respectively.

Amortization expense was $45.9 million, $41.9 million and $40.3 million for the years ended December 31, 2018, 2017 and 2016, respectively.

Estimated annual amortization expense for finite-lived intangible assets, excluding amounts in Work in Progress, subsequent to December 31, 2018 is as follows:


(in thousands)	Amount
2019	$	46,679
2020	46,491
2021	43,962
2022	43,326
2023	43,326
Thereafter	460,276
Total	$	684,060