XML 189 R120.htm IDEA: XBRL DOCUMENT
v3.21.1

ACQUISITION (Details) ¥ in Thousands, $ in Thousands |  | 12 Months Ended
--- | --- | ---
Mar. 06, 2020 USD ($) | Mar. 06, 2020 CNY (¥) | Dec. 31, 2020 CNY (¥) | Dec. 31, 2019 CNY (¥)
Business Acquisition [Line Items] |  |  |  |
Subsidy Receivable, Current |  |  | ¥ 4,567 |
Subsidy Receivable, Noncurrent |  |  | 6,577 |
Ten Tutoring Centers controlled by Beijing Xinganxian | Ambow BSC Inc |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Purchase price |  |  | ¥ 3,222 |
Bay State College Inc | Ambow BSC Inc |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Purchase price |  |  |  | ¥ 5,878
NewSchool |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Ownership interest acquired (as a percent) | 100.00% | 100.00% |  |
NewSchool | Ambow NSAD Inc |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Ownership interest acquired (as a percent) | 100.00% | 100.00% |  |
Purchase price | $ 1,083 | ¥ 7,510 |  |
Term of subsidiy | four | four |  |

X
- Definition Represents the term of subsidy after the acquisition for the loss of certain online business after the change of ownership. + References No definition available. + Details
Name: | ambo_BusinessCombinationSubsidyTerm
Namespace Prefix: | ambo_
Data Type: | us-types:durationStringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Carrying value as of the balance sheet date of subsidies receivable, classified as current. + References No definition available. + Details
Name: | ambo_SubsidyReceivableCurrent
Namespace Prefix: | ambo_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Carrying value as of the balance sheet date of subsidies receivable, classified as noncurrent. + References No definition available. + Details
Name: | ambo_SubsidyReceivableNoncurrent
Namespace Prefix: | ambo_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_BusinessAcquisitionLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Percentage of voting equity interests acquired at the acquisition date in the business combination. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=79982066&loc=d3e1392-128463 + Details
Name: | us-gaap_BusinessAcquisitionPercentageOfVotingInterestsAcquired
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 30 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=116859721&loc=d3e6613-128477 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=120321790&loc=d3e6927-128479 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 30 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=116859721&loc=d3e6578-128477 + Details
Name: | us-gaap_BusinessCombinationConsiderationTransferred1
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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

X
- Details
Name: | srt_ConsolidatedEntitiesAxis=ambo_AmbowBscIncMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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

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

X
- Details
Name: | srt_ConsolidatedEntitiesAxis=ambo_AmbowNsadIncMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |