XML 65 R51.htm IDEA: XBRL DOCUMENT v3.24.2.u1

Fair Value Measurements (Details) $ / shares in Units, $ in Millions	3 Months Ended		6 Months Ended
	Jul. 31, 2024 USD ($) $ / shares shares	Jul. 31, 2023 USD ($)	Jul. 31, 2024 USD ($) $ / shares shares	Jul. 31, 2023 USD ($)
Fair Value Measurements
Equity derivatives, number of common shares held (in shares) | shares	330,441		330,441
Derivative, common shares weighted average price (in dollars per share) | $ / shares	$ 38.04		$ 38.04
Minimum | Revenue growth rate
Fair Value Measurements
Estimated fair value consideration percentage	11		11
Minimum | Discount rate
Fair Value Measurements
Estimated fair value consideration percentage	11		11
Maximum | Revenue growth rate
Fair Value Measurements
Estimated fair value consideration percentage	13		13
Maximum | Discount rate
Fair Value Measurements
Estimated fair value consideration percentage	13		13
General and administrative expenses
Fair Value Measurements
Expense (recovery) | $	$ (3.0)	$ 1.0	$ (5.3)	$ (1.2)

X

- Definition

The per share amount of common shares held by certain derivative instruments entered into by the company.

+ References

No definition available.

+ Details

Name:	dsgx_DerivativeInstrumentCommonSharesHeldPerShare
Namespace Prefix:	dsgx_
Data Type:	dtr-types:perShareItemType
Balance Type:	na
Period Type:	instant

X

- Definition

The number of shares held by certain derivative instruments entered into by the company.

+ References

No definition available.

+ Details

Name:	dsgx_DerivativeInstrumentSharesOfCommonStockHeld
Namespace Prefix:	dsgx_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

X

- Definition

Amount of expenses (recovery) related to operating expenses in the operation statement.

+ References

No definition available.

+ Details

Name:	dsgx_ExpensesAndRecoveriesNet
Namespace Prefix:	dsgx_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

Value of input used to measure contingent consideration liability from business combination.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 820
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (bbb)(2)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482106/820-10-50-2

+ Details

Name:	us-gaap_BusinessCombinationContingentConsiderationLiabilityMeasurementInput
Namespace Prefix:	us-gaap_
Data Type:	xbrli:decimalItemType
Balance Type:	na
Period Type:	instant

X

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

Name:	us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Details

Name:	srt_RangeAxis=srt_MinimumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_MeasurementInputTypeAxis=us-gaap_MeasurementInputLongTermRevenueGrowthRateMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_MeasurementInputTypeAxis=us-gaap_MeasurementInputDiscountRateMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_RangeAxis=srt_MaximumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_IncomeStatementLocationAxis=us-gaap_GeneralAndAdministrativeExpenseMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: