Quarterly report pursuant to Section 13 or 15(d)

FAIR VALUE MEASUREMENTS - Fair value hierarchy of the valuation inputs (Details)

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FAIR VALUE MEASUREMENTS - Fair value hierarchy of the valuation inputs (Details) - USD ($)
 3 Months Ended
Mar. 31, 2020
Mar. 31, 2019
Dec. 31, 2019
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Assets Held-in-trust $ 177,046,651   $ 176,625,548
Cash withdrawn from trust account 201,718 $ 0  
U.S. Treasury Securities [Member]      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Assets Held-in-trust     176,625,548
Fair Value, Inputs, Level 1 [Member] | U S Treasury Securities Money Market Fund [Member]      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Assets Held-in-trust $ 177,046,651   $ 176,625,548