Goodwill and Intangible Assets (Tables)

12 Months Ended

Dec. 31, 2018

The changes in the carrying amount of goodwill for the year ended December 31, 2018 are as follows (amounts in thousands):



	Business			Consumer		Total
Balance as of December 31, 2017	$	72,507		$	8,024	$	80,531
Adjustments to goodwill:
Acquisitions	14,606			—		14,606
Foreign exchange adjustments	(106		)	—		(106		)
Balance as of December 31, 2018	$	87,007		$	8,024	$	95,031

The changes in the carrying amount of goodwill for the year ended December 31, 2017 are as follows (amounts in thousands):



	Business		Consumer		Total
Balance as of December 31, 2016	$	72,221	$	8,024	$	80,245
Adjustments to goodwill:
Foreign exchange adjustments	286		—		286
Balance as of December 31, 2017	$	72,507	$	8,024	$	80,531

Intangible assets are summarized as follows (see Note 8) (amounts in thousands):



	December 31, 2018
	Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount		Weighted Average Amortization Period
Amortizing intangible assets:
Technology	$	30,447	$	(23,615	)	$	6,832	5.3 years
Customer relationships	17,219		(11,786		)	5,433		8.4 years
Trade names	1,286		(1,286		)	—		2.1 years
Non-compete agreements	1,436		(1,436		)	—		2.3 years
Patents	2,074		(534		)	1,540		12.4 years
Other	262		(235		)	27		2.7 years
Total	$	52,724	$	(38,892	)	$	13,832



	December 31, 2017
	Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount		Weighted Average Amortization Period
Amortizing intangible assets:
Technology	$	27,882	$	(22,197	)	$	5,685	5.3 years
Customer relationships	15,978		(10,457		)	5,521		8.0 years
Trade names	1,289		(1,283		)	6		2.1 years
Non-compete agreements	1,439		(1,439		)	—		2.3 years
Patents	1,620		(493		)	1,127		13.1 years
Other	262		(235		)	27		2.7 years
Total	$	48,470	$	(36,104	)	$	12,366

Estimated amortization expense for the next five years are as follows (amounts in thousands):



	Estimated Amortization Expense
2019	$	2,901
2020	2,708
2021	2,498
2022	2,143
2023	902
Thereafter	2,680
Total	$	13,832