No definition available.

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Namespace Prefix:	amhc_
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- Definition

Franchise and income tax obligations paid.

+ References

No definition available.

+ Details

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Namespace Prefix:	amhc_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
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- Definition

The total amount of cash and securities held by third party trustees pursuant to terms of debt instruments or other agreements as of the date of each statement of financial position presented, which can be used by the trustee only to pay the noncurrent portion of specified obligations.

+ 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.(b))
-URI http://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690

+ Details

Name:	us-gaap_AssetsHeldInTrust
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- Definition

The amount of cash, securities, or other assets held by a third-party trustee pursuant to the terms of an agreement which assets are available to be used by beneficiaries to that agreement only within the specific terms thereof and which agreement is expected to terminate more than one year from the balance sheet date (or operating cycle, if longer) at which time the assets held-in-trust will be released or forfeited.

+ References

+ Details

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Balance Type:	debit
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- Definition

Amount of transfer of financial instrument classified as an asset into (out of) level 3 of the fair value hierarchy.

+ References

No definition available.

+ Details

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Data Type:	xbrli:monetaryItemType
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- Definition

Amount of interest earning assets classified as other.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
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- Details

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Period Type:

Fair Value Measurements (Details) - USD ($)	3 Months Ended
Fair Value Measurements (Details) - USD ($)	Mar. 31, 2021	Mar. 31, 2020	Dec. 31, 2020	Dec. 31, 2019
Fair Value Measurements (Details) [Line Items]
Interest earned			$ 198,343
Assets held in trust account			100,339,379	$ 100,154,572
Franchise and income tax obligations paid	$ 138,241	$ 77,310
Fair Value, Inputs, Level 1 [Member]
Fair Value Measurements (Details) [Line Items]
Marketable securities held in Trust Account			100,339,379	$ 100,154,572
Transfer amount of fair value		$ 3,250,000
Assets held in trust account	$ 100,203,611		$ 100,339,379