Acquisitions, Goodwill and Intangible Assets (Tables)

3 Months Ended

Apr. 30, 2020

Goodwill

Schedule of finite-lived intangible assets

Intangible assets subject to amortization realized from acquisitions as of April 30, 2020 are as follows:

(In thousands, except useful life)	Gross Carrying Amount		Accumulated Amortization		Net Carrying Amount		Weighted-Average Remaining Useful Life (months)
Developed technology	$	252,530	$	(97,485)	$	155,045	66
Customer relationships	81,810		(16,403)		65,407		50
Other acquired intangible assets	7,270		(4,038)		3,232		29
Total intangible assets subject to amortization	$	341,610	$	(117,926)	$	223,684

Intangible assets subject to amortization realized from acquisitions as of January 31, 2020 are as follows:

(In thousands, except useful life)	Gross Carrying Amount		Accumulated Amortization		Net Carrying Amount		Weighted-Average Remaining Useful Life (months)
Developed technology	$	252,530	$	(87,112)	$	165,418	68
Customer relationships	81,810		(12,403)		69,407		53
Other acquired intangible assets	7,270		(3,680)		3,590		32
Total intangible assets subject to amortization	$	341,610	$	(103,195)	$	238,415

Schedule of expected future amortization for capitalized computer software costs developed for internal use

The expected future amortization expense for acquired intangible assets as of April 30, 2020 is as follows:

Fiscal Period (In thousands)	Expected Amortization Expense
Remaining fiscal 2021	$	40,975
Fiscal 2022	45,567
Fiscal 2023	41,525
Fiscal 2024	37,015
Fiscal 2025	31,182
Thereafter	27,420
Total amortization expense	$	223,684

SignalFx

Goodwill

Finite-lived and indefinite-lived intangible assets acquired as part of business combination

The following table sets forth the components of identifiable intangible assets acquired and their estimated useful lives as of the date of acquisition:

(In thousands, except useful life)	Fair Value		Useful Life (months)
Developed technology	$	108,800	84
Customer relationships	60,900		60
Other acquired intangible assets	4,000		36
Total intangible assets acquired	$	173,700

We applied significant judgment in determining the fair value of the intangible assets acquired, which involved the use of significant estimates and assumptions with respect to revenue growth rates, royalty rate and technology migration curve.

Omnition

Goodwill

Finite-lived and indefinite-lived intangible assets acquired as part of business combination

The following table sets forth the components of identifiable intangible assets acquired and their estimated useful lives as of the date of acquisition:

(In thousands, except useful life)	Fair Value		Useful Life (months)
Developed technology	$	8,000	60
Total intangible assets acquired	$	8,000

Streamlio

Goodwill

Finite-lived and indefinite-lived intangible assets acquired as part of business combination

The following table sets forth the components of identifiable intangible assets acquired and their estimated useful lives as of the date of acquisition:

(In thousands, except useful life)	Fair Value		Useful Life (months)
Developed technology	$	3,600	36
Total intangible assets acquired	$	3,600