XML 84 R72.htm IDEA: XBRL DOCUMENT
v3.21.1

COMMITMENTS AND CONTINGENCIES (Details) $ in Thousands, ¥ in Millions | 3 Months Ended |
--- | --- | ---
Mar. 31, 2021 USD ($) LegalProceeding | Mar. 31, 2021 CNY (¥) | Dec. 21, 2020 ExecutiveOfficers
COMMITMENTS AND CONTINGENCIES [Abstract] |  |  |
Commitments | $ 3,429 |  |
Required liquidate damage value | $ 63,400 | ¥ 450.0 |
Land use rights period | 6 years | 6 years |
Annual total taxes | $ 22,000 | ¥ 157.6 |
Investments | $ 10,328 |  |
Number of outstanding legal proceedings | LegalProceeding | 1 |  |
Number of executive officers against lawsuit filed | ExecutiveOfficers |  |  | 3

X
- Definition All taxes including value-added taxes, corporate income tax, personal income taxes, urban maintenance and construction taxes, education surcharges, stamp taxes, and vehicle and shipping taxes. + References No definition available. + Details
Name: | acmr_AnnualTotalTaxes
Namespace Prefix: | acmr_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Period after the land use right is obtained. + References No definition available. + Details
Name: | acmr_LandUseRightsPeriod
Namespace Prefix: | acmr_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition A putative class action lawsuit filed against current executive officers. + References No definition available. + Details
Name: | acmr_NumberOfExecutiveOfficersAgainstLawsuitFiled
Namespace Prefix: | acmr_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition Number of outstanding legal proceeding regarding securities class action. + References No definition available. + Details
Name: | acmr_NumberOfOutstandingLegalProceedings
Namespace Prefix: | acmr_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

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

X
- Definition Amount of contractual obligation, including but not limited to, long-term debt, capital lease obligations, operating lease obligations, purchase obligations, and other commitments. + References No definition available. + Details
Name: | us-gaap_ContractualObligation
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of damages awarded to the plaintiff in the legal matter. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 20 -Section 50 -Paragraph 9 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=121557415&loc=d3e14557-108349 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 20 -Section 50 -Paragraph 4 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=121557415&loc=d3e14435-108349 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=121557415&loc=d3e14326-108349 + Details
Name: | us-gaap_LossContingencyDamagesAwardedValue
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount of real estate investments, net of accumulated depreciation, which may include the following: (1) land available-for-sale; (2) land available-for-development; (3) investments in building and building improvements; (4) tenant allowances; (5) developments in-process; (6) rental properties; (7) other real estate investments; (8) real estate joint ventures; and (9) unconsolidated real estate and other joint ventures not separately presented. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03.1(d)) -URI http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910 + Details
Name: | us-gaap_RealEstateInvestments
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant