The equity interest of noncontrolling shareholders, partners or other equity holders in consolidated entity.

No definition available.

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- Definition

The parent entity's interest in net assets of the subsidiary, expressed as a percentage.

+ References

No definition available.

+ Details

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- Definition

The carrying amount, as of the date of the latest financial statement presented, of all assets that are pledged as collateral for the payment of the related debt obligation primarily arising from secured borrowings, repurchase agreements or other current or potential obligations, where the secured party does not have the right by contract or custom to sell or re-pledge the collateral and therefore are not reclassified and separately reported in the statement of financial position.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 860
-SubTopic 30
-Section 50
-Paragraph 1A
-Subparagraph (b)(1)(i)
-URI http://asc.fasb.org/extlink&oid=109249958&loc=SL6224234-111729

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- Definition

Amount of transactions with related party during the financial reporting period.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 850
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-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=6457730&loc=d3e39603-107864

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- Definition

Agreement expiration date.

+ References

No definition available.

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- Definition

Agreement term.

+ References

No definition available.

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- Definition

Amount as of consolidated variable interest entity's assets that have been pledged as collateral for borrowings.

+ References

No definition available.

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- Definition

Amount as of consolidated variable interest entity's liabilities that have been pledged as collateral for borrowings.

+ References

No definition available.

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Balance Type:	credit
Period Type:	instant

- Definition

Number of additional variable interest entities controlled.

+ References

No definition available.

+ Details

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- Definition

The number of internet data centers.

+ References

No definition available.

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- Definition

Exercise price of option.

+ References

No definition available.

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Organization [Line Items]

+ References

No definition available.

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- Definition

The percentage of equity interest transferred, during the period.

+ References

No definition available.

+ Details

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- Definition

Hourly rate of service fee earned from transactions between (a) a parent company and its subsidiaries; (b) subsidiaries of a common parent; (c) an entity and trusts for the benefit of employees, for example, but not limited to, pension and profit-sharing trusts that are managed by or under the trusteeship of the entity's management; (d) an entity and its principal, owners, management, or members of their immediate families; and (e) affiliates.

+ References

No definition available.

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ORGANIZATION - Additional Information (Details) $ in Thousands				1 Months Ended		12 Months Ended
	Aug. 20, 2019	Dec. 19, 2016	Jan. 31, 2011 CNY (¥)	Aug. 31, 2019	Mar. 31, 2017 item	Dec. 31, 2019 CNY (¥)	Dec. 31, 2019 USD ($) entity	Dec. 31, 2019 CNY (¥) entity	Dec. 31, 2018	Mar. 14, 2017
Organization
Number of additional VIEs controlled through Primary Beneficiaries \| entity							2	2
Assets pledged as collateral							$ 31,564	¥ 219,736,000
Consolidated VIE's assets pledged as collateral								0
Consolidated VIE's liabilities pledged as collateral								¥ 0
Internet Data Center Services
Organization
Equity interest percentage by parent					51.00%					51.00%
Number of internet data centers \| item					4
Warburg Pincus
Organization
Equity interest percentage by parent					49.00%					49.00%
Equity interest percentage					49.00%				49.00%
Shihua DC Investment Holdings 2 Limited ("Shihua Holdings 2") \| Warburg Pincus
Organization
Percentage of equity interest transferred	100.00%			100.00%
Option Agreement
Organization
Exclusive option price						¥ 1
Agreement agreement between 21Vianet China and the 21Vianet Technology, term		10 years				10 years
Agreement agreement between 21Vianet China and the 21Vianet Technology, expiration date		Dec. 18, 2026				Dec. 18, 2016
Technical Consulting and Service Agreement
Organization
Agreement agreement between 21Vianet China and the 21Vianet Technology, term		10 years				10 years
Agreement agreement between 21Vianet China and the 21Vianet Technology, expiration date		Dec. 18, 2026				Dec. 18, 2016
Service fee per hour						¥ 1,000
Loan Agreement \| Shareholders \| Loan one
Organization
Loan facility provided to related parties			¥ 7,000,000
Loan Agreement \| Shareholders \| Loan Two
Organization
Loan facility provided to related parties			¥ 3,000,000