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Restricted Net Assets (Details) ¥ in Billions	12 Months Ended
	Dec. 31, 2020 CNY (¥)
Restricted Net Assets
Portion of after-tax profit to be allocated to general reserve fund and the statutory surplus fund under PRC law (as a percent)	10.00%
Amount of net assets of the Company's PRC subsidiaries and VIEs, not available for distribution	¥ 1.2
Percentage of net assets of the Company's PRC subsidiaries and VIEs, not available for distribution	16.10%

X

- Definition

Represents the percentage of annual appropriations of net after tax income should be set aside prior to payment of any dividends under PRC laws and regulations.

+ References

No definition available.

+ Details

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X

- Definition

The portion of the consolidated net assets that are restricted under relevant PRC laws and regulations.

+ References

No definition available.

+ Details

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Namespace Prefix:	bili_
Data Type:	num:percentItemType
Balance Type:	na
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X

- References

No definition available.

+ Details

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Data Type:	xbrli:stringItemType
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X

- Definition

Amount of restricted net assets of consolidated and unconsolidated subsidiaries as of the end of the most recently completed fiscal year.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08.(e)(3)(ii))
-URI http://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690

+ Details

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