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Summary of Significant Accounting Policies - Future minimum payments on noncancelable leases (Details)

v3.21.2
Summary of Significant Accounting Policies - Future minimum payments on noncancelable leases (Details) - Evolv Technologies Holdings Inc [Member] - USD ($)
$ in Thousands
Mar. 31, 2021
Dec. 31, 2020
Dec. 31, 2014
Minimum future leases      
2021 (remaining nine months) $ 3,137 $ 3,636  
2022 3,775 3,241  
2023 3,033 2,528  
2024 1,748 1,254  
2025 96 40  
Thereafter 60 60  
Total $ 11,849 $ 10,759 $ 100