Condensed Statement of Changes in Shareholders' Equity (Parenthetical)	12 Months Ended
Dec. 31, 2019 shares
Statement of Stockholders' Equity [Abstract]
Sale of units, net of underwriting discounts and offering expenses Shares	30,000,000
Sale of private placement warrants	6,750,000

Sale of units, net of underwriting discounts and offering expenses Shares.

No definition available.

Name:	ACTT_SaleOfUnitsNetOfUnderwritingDiscountsAndOfferingExpensesShares
Namespace Prefix:	ACTT_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration