SeaChange International, Inc. Annual report pursuant to Section 13 and 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	12 Months Ended
	Jan. 31, 2014	Jan. 31, 2013
Finite Lived And Indefinite Lived Intangible Assets [Line Items]
Total intangible assets, Gross	$ 54,177	$ 54,136
Finite-lived intangible assets, Gross	53,977	53,936
Accumulated Amortization	(41,322)	(36,622)
Finite-lived intangible assets, Net	12,655	17,314
Total intangible assets, net	12,855	17,514
Indefinite-lived intangible assets	200	200
Indefinite-lived intangible assets	200	200
Customer Contracts [Member]
Finite Lived And Indefinite Lived Intangible Assets [Line Items]
Weighted average remaining life (years)	6 years
Finite-lived intangible assets, Gross	32,593	32,568
Accumulated Amortization	(22,344)	(18,756)
Finite-lived intangible assets, Net	10,249	13,812
Non-Compete Agreements [Member]
Finite Lived And Indefinite Lived Intangible Assets [Line Items]
Weighted average remaining life (years)	1 year
Finite-lived intangible assets, Gross	2,772	2,769
Accumulated Amortization	(2,632)	(2,375)
Finite-lived intangible assets, Net	140	394
Completed Technology [Member]
Finite Lived And Indefinite Lived Intangible Assets [Line Items]
Weighted average remaining life (years)	5 years 1 month 6 days
Finite-lived intangible assets, Gross	11,461	11,448
Accumulated Amortization	(9,195)	(8,437)
Finite-lived intangible assets, Net	2,266	3,011
Trademarks, Patents and Other [Member]
Finite Lived And Indefinite Lived Intangible Assets [Line Items]
Weighted average remaining life (years)	5 years
Finite-lived intangible assets, Gross	7,151	7,151
Accumulated Amortization	(7,151)	(7,054)
Finite-lived intangible assets, Net		97
Trade Names [Member]
Finite Lived And Indefinite Lived Intangible Assets [Line Items]
Indefinite-lived intangible assets	200	200
Indefinite-lived intangible assets	$ 200	$ 200