Consolidated Statements of Operations and Comprehensive (Loss) Income - USD ($) $ in Thousands	12 Months Ended
	Jan. 31, 2020	Jan. 31, 2019	Jan. 31, 2018
Revenue:
Revenues	$ 310,772	$ 333,016	$ 305,018
Costs of revenue:
Costs of revenues	139,909	155,884	149,425
Gross profit	170,863	177,132	155,593
Operating expenses:
Sales and marketing	82,115	78,207	75,368
Research and development	54,726	53,993	47,661
General and administrative	39,442	35,248	35,222
Amortization of intangible assets from acquisitions	268	111	416
Total operating expenses	176,551	167,559	158,667
Operating (loss) income	(5,688)	9,573	(3,074)
Other (income) expense:
Interest income	(2,782)	(2,600)	(1,547)
Interest expense	630	643	669
Other expense (income), net	68	(387)	2,012
Total other (income) expense, net	(2,084)	(2,344)	1,134
(Loss) income before income taxes	(3,604)	11,917	(4,208)
Income tax expense	12,345	1,489	4,857
Net (loss) income	(15,949)	10,428	(9,065)
Diluted net (loss) income per share:
Net (loss) income	(15,949)	10,428	(9,065)
Other comprehensive (loss) income, net of tax:
Foreign currency translation adjustment	(684)	(833)	1,803
Total comprehensive (loss) income	(16,633)	9,595	(7,262)
Common Class A [Member]
Other (income) expense:
Net (loss) income	$ (13,692)	$ 8,939	$ (7,762)
Basic net (loss) income per share:
Basic net (loss) income per share (in dollars per share)	$ (0.82)	$ 0.55	$ (0.49)
Diluted net (loss) income per share:
Diluted net (loss) income per share (in dollars per share)	$ (0.82)	$ 0.50	$ (0.49)
Net (loss) income	$ (13,692)	$ 8,939	$ (7,762)
Common Class B [Member]
Other (income) expense:
Net (loss) income	$ (2,257)	$ 1,489	$ (1,303)
Basic net (loss) income per share:
Basic net (loss) income per share (in dollars per share)	$ (0.69)	$ 0.46	$ (0.41)
Diluted net (loss) income per share:
Diluted net (loss) income per share (in dollars per share)	$ (0.69)	$ 0.44	$ (0.41)
Net (loss) income	$ (2,257)	$ 1,489	$ (1,303)
Subscription and Circulation [Member]
Revenue:
Revenues	107,168	91,861	69,615
Costs of revenue:
Costs of revenues	38,451	34,128	30,563
License [Member]
Revenue:
Revenues	16,570	25,568	25,807
Costs of revenue:
Costs of revenues	2,308	2,714	2,946
Maintenance [Member]
Revenue:
Revenues	117,896	122,936	128,142
Costs of revenue:
Costs of revenues	29,702	31,307	31,246
Professional Services [Member]
Revenue:
Revenues	69,138	92,651	81,454
Costs of revenue:
Costs of revenues	$ 69,448	$ 87,735	$ 84,670