SeaChange International, Inc. Quarterly report pursuant to Section 13 or 15(d)

Goodwill and Intangible Assets - Schedule of Intangible Assets (Detail)

Goodwill and Intangible Assets - Schedule of Intangible Assets (Detail) (USD $) In Thousands, unless otherwise specified	0 Months Ended	3 Months Ended
	Feb. 02, 2015	Apr. 30, 2015	Jan. 31, 2015
Finite Lived And Indefinite Lived Intangible Assets [Line Items]
Finite-life intangible assets, Gross		$ 56,643	$ 50,219
Accumulated Amortization		(43,781)	(42,905)
Finite-life intangible assets, Net		12,862us-gaap_FiniteLivedIntangibleAssetsNet	7,314us-gaap_FiniteLivedIntangibleAssetsNet
Customer Contracts [Member]
Finite Lived And Indefinite Lived Intangible Assets [Line Items]
Weighted average remaining life (years)	7 years	6 years 3 months 18 days
Finite-life intangible assets, Gross		34,984	30,397
Accumulated Amortization		(24,896)	(24,160)
Finite-life intangible assets, Net		10,088	6,237
Non-Compete Agreements [Member]
Finite Lived And Indefinite Lived Intangible Assets [Line Items]
Weighted average remaining life (years)	2 years	2 years
Finite-life intangible assets, Gross		2,576	2,433
Accumulated Amortization		(2,427)	(2,433)
Finite-life intangible assets, Net		149
Completed Technology [Member]
Finite Lived And Indefinite Lived Intangible Assets [Line Items]
Weighted average remaining life (years)		5 years 1 month 6 days
Finite-life intangible assets, Gross		11,386	10,307
Accumulated Amortization		(9,359)	(9,230)
Finite-life intangible assets, Net		2,027	1,077
Trademarks, Patents and Other [Member]
Finite Lived And Indefinite Lived Intangible Assets [Line Items]
Weighted average remaining life (years)		7 years
Finite-life intangible assets, Gross		7,697	7,082
Accumulated Amortization		(7,099)	(7,082)
Finite-life intangible assets, Net		$ 598