Blade Air Mobility, Inc. Quarterly report pursuant to Section 13 or 15(d)

Fair Value Measurements- Changes in the fair value of warrant liabilities (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
	Jun. 30, 2021	Jun. 30, 2021
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value as of beginning		$ 0
Assumption of warrants in recapitalization		23,886
Change in fair value of warrant liabilities	$ 14,913	14,913
Fair value as of ending	38,799	38,799
Public Warrants
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value as of beginning		0
Assumption of warrants in recapitalization		15,456
Change in fair value of warrant liabilities		9,649
Fair value as of ending	25,105	25,105
Private Placement Warrants
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value as of beginning		0
Assumption of warrants in recapitalization		8,430
Change in fair value of warrant liabilities		5,264
Fair value as of ending	$ 13,694	$ 13,694