XML 70 R55.htm IDEA: XBRL DOCUMENT
v3.24.0.1

Fair Value Measurements (Details) $ / shares in Units, $ in Millions | 12 Months Ended
--- | ---
Jan. 31, 2024 USD ($) $ / shares shares | Jan. 31, 2023 USD ($) | Jan. 31, 2022 USD ($)
Fair Value Measurements |  |  |
Equity derivatives, number of common shares held (in shares) | shares | 311,081 |  |
Derivative, common shares weighted average price (in dollars per share) | $ / shares | $ 35.67 |  |
Minimum | Revenue growth rate |  |  |
Fair Value Measurements |  |  |
Estimated fair value consideration percentage | 0.10 |  |
Minimum | Discount rate |  |  |
Fair Value Measurements |  |  |
Estimated fair value consideration percentage | 0.10 |  |
Maximum | Revenue growth rate |  |  |
Fair Value Measurements |  |  |
Estimated fair value consideration percentage | 0.13 |  |
Maximum | Discount rate |  |  |
Fair Value Measurements |  |  |
Estimated fair value consideration percentage | 0.13 |  |
General and administrative expenses |  |  |
Fair Value Measurements |  |  |
Expense (recovery) | $ | $ (4.6) | $ (1.3) | $ (2.9)

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: |