General form of registration statement for all companies including face-amount certificate companies

Reverse Recapitalization - Additional Information (Detail)

v3.21.2
Reverse Recapitalization - Additional Information (Detail) - USD ($)
$ / shares in Units, $ in Thousands
9 Months Ended
Sep. 30, 2021
Dec. 31, 2020
Dec. 31, 2019
Common stock, other shares, outstanding 71,810,419    
Common stock par or stated value per share $ 0.0001 $ 0.0001 $ 0.0001
Class of warrant or right, outstanding 8,911,744    
Shares issued, price per share $ 139.15    
Transactions costs $ 63,200    
Proceeds from the issuance of warrants 225,000    
Proceeds from CTAC after redemptions 20,000    
Proceeds from the Backstop Notes 95,100    
Payments to KORE's preferred shareholders 229,900    
Business acquisition, transaction costs 23,700    
Repaid the outstanding related party loans 1,538    
Adjustments to additional paid in capital business acquisition cost 23,600    
Underwriting Costs Overpaid Amount 4,000    
Interfusion B.V and T-Fone B.V [Member]      
Repaid the senior secured revolving credit facility 25,000    
Repaid the outstanding related party loans 1,600    
Selling, General and Administrative Expenses [Member]      
Business combination, acquisition related costs $ 100    
Cerberus Telecom Acquisition Corp [Member]      
Stock shares issued during the period shares new issues 10,356,593    
Stock redeemed 22,240,970    
Temporary equity, redemption price per share $ 10.00    
Cerberus Telecom Acquisition Corp [Member] | PIPE Investors [Member]      
Shares issued, price per share $ 10.00    
Stock shares issued during the period shares new issues 22,500,000    
Business Combination [Member]      
Business acquisition, transaction costs $ 19,000