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Consolidated Statements of Stockholders' Equity - USD ($)
$ in Thousands
Total
Class A Common Stock [Member]
Class B Common Stock [Member]
Class C Common Stock [Member]
Additional Paid-in Capital [Member]
Accumulated Other Comprehensive Income (Loss) [Member]
Accumulated Deficit [Member]
Noncontrolling Interest [Member]
Beginning balance, value at Dec. 31, 2022 $ 359,826 $ 7 $ 5 $ 8 $ 235,384 $ 229 $ (102,101) $ 226,294
Beginning balance, shares at Dec. 31, 2022   71,819,926 50,041,757 78,163,078        
Stock-based compensation 13,289       12,631     658
Issuance of common stock, net of issuance costs 63,767 $ 1     36,892     26,874
Issuance of common stock, net of issuance costs, Shares   14,027,909            
Issuance of equity under employee stock plan 225 $ 1     3,699     (3,475)
Issuance of equity under employee stock plan, Shares   3,639,645            
Vesting of restricted stock units (865)       (202)     (663)
Vesting of restricted stock units, Shares   673,829            
Foreign currency translation adjustments (6)         (2)   (4)
Net loss (222,677)           (87,561) (135,116)
Ending balance, value at Dec. 31, 2023 213,559 $ 9 $ 5 $ 8 288,404 227 (189,662) 114,568
Ending balance, shares at Dec. 31, 2023   90,161,309 50,041,757 78,163,078        
Stock-based compensation 32,039       26,680     5,359
Issuance of common stock, net of issuance costs 539,796 $ 6     351,846     187,944
Issuance of common stock, net of issuance costs, Shares   62,052,687            
Issuance of equity under employee stock plan 4,941       2,776     2,165
Issuance of equity under employee stock plan, Shares   462,224            
Vesting of restricted stock units (5,201)       (4,204)     (997)
Vesting of restricted stock units, Shares   1,532,573            
Warrant exercise 410,928 $ 1     242,570     168,357
Warrant exercise, Shares   13,971,450            
Redemption of AST LLC Common Units for Class A common stock   $ 4 $ (1)   60,932     (60,935)
Redemption of AST LLC Common Units for Class A common stock, Shares   39,992,955 (38,814,465)          
Foreign currency translation adjustments (586)         (403)   (183)
Net loss (526,330)           (300,083) (226,247)
Ending balance, value at Dec. 31, 2024 669,146 $ 20 $ 4 $ 8 969,004 (176) (489,745) 190,031
Ending balance, shares at Dec. 31, 2024   208,173,198 11,227,292 78,163,078        
Stock-based compensation 47,490       47,173     317
Issuance of common stock, net of issuance costs 1,271,604 $ 2     974,313     297,289
Issuance of common stock, net of issuance costs, Shares   26,651,988            
Issuance of equity under employee stock plan 11,808       6,336     5,472
Issuance of equity under employee stock plan, Shares   1,226,686            
Issuance of equity to acquire spectrum priority rights and pay spectrum usage fees 30,081       23,760     6,321
Issuance of equity to acquire spectrum priority rights and pay spectrum usage fees, Shares   963,385            
Vesting of restricted stock units (23,018)       (15,884)     (7,134)
Vesting of restricted stock units, Shares   1,389,318            
Issuance of penny warrants 121,156       89,197     31,959
Capped call, net (24,056)       (15,666)     (8,390)
2034 Convertible Notes settlement 139,620 $ 3     115,601     24,016
2034 Convertible Notes settlement, Shares   25,818,541            
2032 4.25% Convertible Notes settlement 505,526 $ 2     394,180     111,344
2032 4.25% Convertible Notes settlement, Shares   17,274,752            
Warrant exercise $ 101,930       78,875     23,055
Warrant exercise, Shares   2,294,380            
Redemption of AST LLC Common Units for Class A common stock         4,881     (4,881)
Redemption of AST LLC Common Units for Class A common stock, Shares 0 1,657,663            
Foreign currency translation adjustments $ 2,049         1,527   522
Net loss (461,011)           (341,940) (119,071)
Ending balance, value at Dec. 31, 2025 $ 2,392,325 $ 27 $ 4 $ 8 $ 2,671,770 $ 1,351 $ (831,685) $ 550,850
Ending balance, shares at Dec. 31, 2025   285,449,911 11,227,292 78,163,078