XML 68 R57.htm IDEA: XBRL DOCUMENT
v3.20.4

Fair Value Measurements - Assets And Liabilities Measured At Fair Value (Details) - Fair Value, Recurring - USD ($) $ in Thousands | Dec. 25, 2020 | Mar. 27, 2020
--- | --- | ---
Assets: |  |
Total assets | $ 22,840 | $ 51,722
Liabilities: |  |
Contingent consideration | 7,800 |
Total liabilities | 7,800 |
Level 1 |  |
Assets: |  |
Total assets | 22,840 | 51,722
Liabilities: |  |
Contingent consideration | 0 |
Total liabilities | 0 |
Level 2 |  |
Assets: |  |
Total assets | 0 | 0
Liabilities: |  |
Contingent consideration | 0 |
Total liabilities | 0 |
Level 3 |  |
Assets: |  |
Total assets | 0 | 0
Liabilities: |  |
Contingent consideration | 7,800 |
Total liabilities | 7,800 |
Money Market Funds |  |
Assets: |  |
Cash and cash equivalents, fair value disclosure | 16,320 | 46,337
Restricted cash and restricted cash equivalents, fair value disclosure | 6,520 | 5,385
Money Market Funds | Level 1 |  |
Assets: |  |
Cash and cash equivalents, fair value disclosure | 16,320 | 46,337
Restricted cash and restricted cash equivalents, fair value disclosure | 6,520 | 5,385
Money Market Funds | Level 2 |  |
Assets: |  |
Cash and cash equivalents, fair value disclosure | 0 | 0
Restricted cash and restricted cash equivalents, fair value disclosure | 0 | 0
Money Market Funds | Level 3 |  |
Assets: |  |
Cash and cash equivalents, fair value disclosure | 0 | 0
Restricted cash and restricted cash equivalents, fair value disclosure | $ 0 | $ 0

X
- Definition Contingent Consideration, Fair Value Disclosure + References No definition available. + Details
Name: | algm_ContingentConsiderationFairValueDisclosure
Namespace Prefix: | algm_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Restricted Cash and Cash Equivalents, Fair Value Disclosure + References No definition available. + Details
Name: | algm_RestrictedCashAndCashEquivalentsFairValueDisclosure
Namespace Prefix: | algm_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Fair value portion of probable future economic benefits obtained or controlled by an entity as a result of past transactions or events. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258 + Details
Name: | us-gaap_AssetsFairValueDisclosure
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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

X
- Definition Fair value portion of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. + References No definition available. + Details
Name: | us-gaap_CashAndCashEquivalentsFairValueDisclosure
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Fair value of financial and nonfinancial obligations. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258 + Details
Name: | us-gaap_LiabilitiesFairValueDisclosure
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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

X
- Details
Name: | us-gaap_FairValueByMeasurementFrequencyAxis=us-gaap_FairValueMeasurementsRecurringMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel1Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel2Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel3Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_CashAndCashEquivalentsAxis=us-gaap_MoneyMarketFundsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |