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, 2015	Jan. 31, 2014
Finite Lived And Indefinite Lived Intangible Assets [Line Items]
Finite-lived intangible assets, Gross	$ 50,219	$ 53,977
Accumulated Amortization	(42,905)	(41,322)
Finite-lived intangible assets, Net	7,314us-gaap_FiniteLivedIntangibleAssetsNet	12,655us-gaap_FiniteLivedIntangibleAssetsNet
Total intangible assets, Gross	50,219	54,177
Accumulated Amortization	(42,905)	(41,322)
Total intangible assets, net	7,314	12,855
Customer Contracts [Member]
Finite Lived And Indefinite Lived Intangible Assets [Line Items]
Weighted average remaining life (years)	6 years
Finite-lived intangible assets, Gross	30,397	32,593
Accumulated Amortization	(24,160)	(22,344)
Finite-lived intangible assets, Net	6,237	10,249
Non-Compete Agreements [Member]
Finite Lived And Indefinite Lived Intangible Assets [Line Items]
Finite-lived intangible assets, Gross	2,433	2,772
Accumulated Amortization	(2,433)	(2,632)
Finite-lived intangible assets, Net		140
Completed Technology [Member]
Finite Lived And Indefinite Lived Intangible Assets [Line Items]
Weighted average remaining life (years)	5 years 2 months 12 days
Finite-lived intangible assets, Gross	10,307	11,461
Accumulated Amortization	(9,230)	(9,195)
Finite-lived intangible assets, Net	1,077	2,266
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	7,082	7,151
Accumulated Amortization	(7,082)	(7,151)
Trade Names [Member]
Finite Lived And Indefinite Lived Intangible Assets [Line Items]
Indefinite-lived intangible assets, Weighted average remaining life (years)	-
Indefinite-lived intangible assets, Gross		200
Accumulated Amortization	0	0
Indefinite-lived intangible assets, Net		$ 200