Goodwill and Intangible Assets (Tables)

12 Months Ended

Dec. 31, 2016

The changes in the carrying amount of goodwill for the year ended December 31, 2016 are as follows (amounts in thousands):



	Business			Consumer		Total
Balance as of December 31, 2015	$	72,298		$	8,024	$	80,322
Adjustments to goodwill:
Foreign exchange adjustments	(77		)	—		(77		)
Balance as of December 31, 2016	$	72,221		$	8,024	$	80,245

The changes in the carrying amount of goodwill for the year ended December 31, 2015 are as follows (amounts in thousands):



	Business			Consumer		Total
Balance as of December 31, 2014	$	72,824		$	8,024	$	80,848
Adjustments to goodwill:
Foreign exchange adjustments	(526		)	—		(526		)
Balance as of December 31, 2015	$	72,298		$	8,024	$	80,322

Intangible assets are summarized as follows (see Note 7) (amounts in thousands):



	December 31, 2016
	Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount		Weighted Average Amortization Period
Amortizing intangible assets:
Technology	$	28,018	$	(19,736	)	$	8,282	4.7 years
Customer relationships	16,009		(8,857		)	7,152		5.8 years
Trade names	1,295		(1,277		)	18		2.6 years
Non-compete agreements	1,446		(1,220		)	226		1.7 years
Patents	1,180		(376		)	804		11.0 years
Other	263		(235		)	28		3.0 years
Total	$	48,211	$	(31,701	)	$	16,510



	December 31, 2015
	Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount		Weighted Average Amortization Period
Amortizing intangible assets:
Technology	$	28,005	$	(15,723	)	$	12,282	4.7 years
Customer relationships	16,008		(6,873		)	9,135		5.8 years
Trade names	1,287		(1,250		)	37		2.6 years
Non-compete agreements	1,446		(936		)	510		1.7 years
Patents	3,440		(848		)	2,592		9.3 years
Other	312		(249		)	63		3.0 years
Total	$	50,498	$	(25,879	)	$	24,619

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



	Estimated Amortization Expense
2017	$	4,598
2018	2,550
2019	2,343
2020	2,146
2021	1,945
Thereafter	2,928
Total	$	16,510