Goodwill and Other Intangible Assets (Tables)

6 Months Ended

Jun. 30, 2017

Goodwill and Intangible Assets Disclosure [Abstract]

Changes in the Company’s goodwill balance for the six months ended June 30, 2017 are summarized in the table below (in thousands):



Balance at December 31, 2016	$	69,097
Acquired in business combinations	34,258
Foreign currency translation adjustment	423
Balance at June 30, 2017	$	103,778

Summary of intangible assets, net

The following is a summary of the Company’s intangible assets, net (in thousands):



	Estimated Useful Life (Years)	Gross Carrying Amount		Accumulated Amortization		Net Carrying Amount
June 30, 2017:
Customer relationships	1-10	$	43,102	$	14,560	$	28,542
Trade name	1.5-3	3,014		2,676		338
Developed technology	4-7	21,091		8,799		12,292
Total intangible assets		$	67,207	$	26,035	$	41,172



	Estimated Useful Life (Years)	Gross Carrying Amount		Accumulated Amortization		Net Carrying Amount
December 31, 2016:
Customer relationships	1-10	$	32,703	$	12,418	$	20,285
Trade name	1.5-3	2,636		2,462		174
Developed technology	4-7	15,228		7,175		8,053
Total intangible assets		$	50,567	$	22,055	$	28,512

Schedule of weighted-average amortization period

The following table summarizes the Company's weighted-average amortization period, in total and by major finite-lived intangible asset class (in years):



	June 30, 2017	December 31, 2016
Customer relationships	9.4	9.3
Trade name	0.5	2.8
Developed technology	6.2	6.3
Total weighted-average amortization period	8.0	8.0

Estimated annual amortization expense

Estimated annual amortization expense for the next five years and thereafter is as follows (in thousands):



	Amortization Expense
Year ending December 31:
Remainder of 2017	$	4,108
2018	7,852
2019	6,870
2020	5,900
2021	5,504
2022 and thereafter	10,938
Total	$	41,172