XML 89 R105.htm IDEA: XBRL DOCUMENT
v3.20.1

Note 23 - Subsequent Event (Details Textual) $ in Thousands, £ in Millions |  | 12 Months Ended
--- | --- | ---
Feb. 21, 2020 USD ($) | Feb. 21, 2020 GBP (£) | Jan. 31, 2020 USD ($) | Jan. 31, 2019 USD ($) | Jan. 31, 2018 USD ($)
Payments to Acquire Businesses, Net of Cash Acquired, Total |  |  | $ 292,053 | $ 67,932 | $ 111,867
Subsequent Event [Member] | Peoplevox Limited [Member] |  |  |  |  |
Payments to Acquire Businesses, Net of Cash Acquired, Total | $ 24,500 | £ 18.9 |  |  |

X
- Definition The cash outflow associated with the acquisition of a business, net of the cash acquired from the purchase. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 13 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3213-108585 + Details
Name: | us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Details
Name: | us-gaap_SubsequentEventTypeAxis=us-gaap_SubsequentEventMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_BusinessAcquisitionAxis=dsgx_PeoplevoxLimitedMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |