XML 18 R8.htm IDEA: XBRL DOCUMENT
v3.22.2

Consolidated Statements of Stockholders' Equity (Parenthetical) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2021 | Jun. 30, 2021
Statement of Stockholders' Equity [Abstract] |  |
Purchase of capped call options, tax | $ 6,334 | $ 12,584

X
- Definition Adjustments To Additional Paid Capital, Purchase Of Capped Call Options, Tax + References No definition available. + Details
Name: | bsy_AdjustmentsToAdditionalPaidCapitalPurchaseOfCappedCallOptionsTax
Namespace Prefix: | bsy_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_StatementOfStockholdersEquityAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration