XML 80 R63.htm IDEA: XBRL DOCUMENT
v3.22.1

Other Operating Income, Net - Schedule of Other Operating Income, Net (Detail) ¥ in Thousands, $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2021 CNY (¥) | Dec. 31, 2021 USD ($) | Dec. 31, 2020 CNY (¥) | Dec. 31, 2019 CNY (¥)
Other Income and Expenses [Abstract] |  |  |  |
VAT-in super deduction | ¥ 12,423 |  | ¥ 7,981 | ¥ 2,412
Operating Income Other | 2,554 |  | 868 | 161
Total | ¥ 14,977 | $ 2,350 | ¥ 8,849 | ¥ 2,573

X
- Definition Income from value added tax in super deduction. + References No definition available. + Details
Name: | bz_IncomeFromValueAddedTaxInSuperDeduction
Namespace Prefix: | bz_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Operating Income Other + References No definition available. + Details
Name: | bz_OperatingIncomeOther
Namespace Prefix: | bz_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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

X
- Definition The total amount of other operating income, the components of which are not separately disclosed on the income statement, from items that are associated with the entity's normal revenue producing operation. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.1) -URI http://asc.fasb.org/extlink&oid=123367319&loc=SL114868664-224227 + Details
Name: | us-gaap_OtherOperatingIncome
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration