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RESTATEMENT OF PREVIOUSLY ISSUED FINANCIAL STATEMENTS - Unaudited Condensed Consolidated Statement of Cash Flows (Details) - USD ($) $ in Thousands |  | 3 Months Ended | 9 Months Ended
--- | --- | --- | ---
Jul. 21, 2021 | Sep. 30, 2022 | Jun. 30, 2022 | Mar. 31, 2022 | Sep. 30, 2021 | Jun. 30, 2021 | Mar. 31, 2021 | Sep. 30, 2022 | Sep. 30, 2021
OPERATING ACTIVITIES: |  |  |  |  |  |  |  |  |
Net loss |  | $ (148,838) | $ (92,760) | $ (89,040) | $ (59,455) | $ (28,954) | $ (32,213) | $ (330,637) | $ (120,622)
Adjustments to reconcile net loss to net cash used in operating activities: |  |  |  |  |  |  |  |  |
Depreciation and amortization |  |  |  |  |  |  |  | 46,862 |
Amortization of deferred financing costs and debt discount |  | 0 |  |  | 0 |  |  | 0 | 618
Equity-based compensation |  |  |  |  |  |  |  | 65,839 | 30,668
Fair Value Adjustment of Warrants |  | 2,504 |  |  | 12,271 |  |  | 8,265 | 12,271
Provision for expected credit losses |  |  |  |  |  |  |  | 0 |
Provision for (recovery of) expected credit losses |  |  |  |  |  |  |  | (489) | 1,163
Gain on sale of aircraft held for sale |  |  |  |  |  |  |  | (3,950) |
Loss on extinguishment of debt |  | 0 |  |  | 2,379 |  |  | 0 | 2,379
Impairment of goodwill |  | 62,000 |  |  | 0 |  |  | 62,000 | 0
Changes in operating assets and liabilities, net of effects from acquisitions: |  |  |  |  |  |  |  |  |
Accounts receivable |  |  |  |  |  |  |  | (31,474) | (9,074)
Other receivables |  |  |  |  |  |  |  | (859) | (1,906)
Parts and supplies inventories |  |  |  |  |  |  |  | (8,544) | (2,749)
Aircraft inventory |  |  |  |  |  |  |  | (33,231) | 0
Prepaid expenses |  |  |  |  |  |  |  | (8,065) | (11,673)
Other current assets |  |  |  |  |  |  |  | (2,477) | 0
Other non-current assets |  |  |  |  |  |  |  | (27,534) | (256)
Operating lease liabilities, net |  |  |  |  |  |  |  | (624) | (1,414)
Accounts payable |  |  |  |  |  |  |  | (2,885) | 11,807
Accrued expenses |  |  |  |  |  |  |  | (1,131) | (9,742)
Other current liabilities |  |  |  |  |  |  |  | 812 | (1,037)
Other non-current liabilities |  |  |  |  |  |  |  | (1,036) | 131
Deferred revenue |  |  |  |  |  |  |  | (2,653) | (69,390)
Net cash used in operating activities |  |  |  |  |  |  |  | (288,341) | (152,416)
INVESTING ACTIVITIES: |  |  |  |  |  |  |  |  |
Purchases of property and equipment |  |  |  |  |  |  |  | (80,039) | (6,683)
Purchases of aircraft held for sale |  |  |  |  |  |  |  | (39,894) | 0
Proceeds from sale of aircraft held for sale, net |  |  |  |  |  |  |  | 41,833 | 0
Acquisitions of businesses, net of cash acquired |  |  |  |  |  |  |  | (75,093) | 7,844
Capitalized software development costs |  |  |  |  |  |  |  | (18,532) | (9,589)
Net cash used in investing activities |  |  |  |  |  |  |  | (171,725) | (8,428)
FINANCING ACTIVITIES: |  |  |  |  |  |  |  |  |
Proceeds from stock option exercises |  |  |  |  |  |  |  | 0 | 1,332
Purchase of Shares for Treasury |  |  |  |  |  |  |  | (7,347) | 0
Proceeds from Business Combination and PIPE Investment |  |  |  |  |  |  |  | 0 | 656,304
Transaction costs in connection with the Business Combination and PIPE Investment |  |  |  |  |  |  |  | 0 | (70,406)
Proceeds from long-term debt |  |  |  |  |  |  |  | 0 |
Repayments of long-term debt | $ (175,500) |  |  |  |  |  |  | 0 | (213,934)
Repayment of loans to employees |  |  |  |  |  |  |  | 0 | 102
Net cash provided by (used in) financing activities |  |  |  |  |  |  |  | (7,347) | 373,398
Effect of exchange rate changes on cash, cash equivalents and restricted cash |  |  |  |  |  |  |  | (7,395) | 0
NET INCREASE (DECREASE) IN CASH, CASH EQUIVALENTS AND RESTRICTED CASH |  |  |  |  |  |  |  | (474,808) | 212,554
CASH, CASH EQUIVALENTS AND RESTRICTED CASH BEGINNING OF PERIOD |  |  |  | 786,722 |  |  | $ 324,876 | 786,722 | 324,876
CASH, CASH EQUIVALENTS AND RESTRICTED CASH END OF PERIOD |  | 311,914 |  |  | $ 537,430 |  |  | 311,914 | $ 537,430
As Reported |  |  |  |  |  |  |  |  |
OPERATING ACTIVITIES: |  |  |  |  |  |  |  |  |
Net loss |  | (86,838) |  |  |  |  |  | (268,637) |
Adjustments to reconcile net loss to net cash used in operating activities: |  |  |  |  |  |  |  |  |
Depreciation and amortization |  |  |  |  |  |  |  | 46,862 |
Amortization of deferred financing costs and debt discount |  |  |  |  |  |  |  | 0 |
Equity-based compensation |  |  |  |  |  |  |  | 65,839 |
Fair Value Adjustment of Warrants |  | 2,504 |  |  |  |  |  | 8,265 |
Provision for expected credit losses |  |  |  |  |  |  |  | 0 |
Provision for (recovery of) expected credit losses |  |  |  |  |  |  |  | (489) |
Gain on sale of aircraft held for sale |  |  |  |  |  |  |  | (3,950) |
Loss on extinguishment of debt |  | 0 |  |  |  |  |  | 0 |
Impairment of goodwill |  | 0 |  |  |  |  |  | 0 |
Changes in operating assets and liabilities, net of effects from acquisitions: |  |  |  |  |  |  |  |  |
Accounts receivable |  |  |  |  |  |  |  | (31,474) |
Other receivables |  |  |  |  |  |  |  | (859) |
Parts and supplies inventories |  |  |  |  |  |  |  | (8,544) |
Aircraft inventory |  |  |  |  |  |  |  | (33,231) |
Prepaid expenses |  |  |  |  |  |  |  | (8,065) |
Other current assets |  |  |  |  |  |  |  | (2,477) |
Other non-current assets |  |  |  |  |  |  |  | (27,534) |
Operating lease liabilities, net |  |  |  |  |  |  |  | (624) |
Accounts payable |  |  |  |  |  |  |  | (2,885) |
Accrued expenses |  |  |  |  |  |  |  | (1,131) |
Other current liabilities |  |  |  |  |  |  |  | 812 |
Other non-current liabilities |  |  |  |  |  |  |  | (1,036) |
Deferred revenue |  |  |  |  |  |  |  | (2,653) |
Net cash used in operating activities |  |  |  |  |  |  |  | (288,341) |
INVESTING ACTIVITIES: |  |  |  |  |  |  |  |  |
Purchases of property and equipment |  |  |  |  |  |  |  | (80,039) |
Purchases of aircraft held for sale |  |  |  |  |  |  |  | (39,894) |
Proceeds from sale of aircraft held for sale, net |  |  |  |  |  |  |  | 41,833 |
Acquisitions of businesses, net of cash acquired |  |  |  |  |  |  |  | (75,093) |
Capitalized software development costs |  |  |  |  |  |  |  | (18,532) |
Net cash used in investing activities |  |  |  |  |  |  |  | (171,725) |
FINANCING ACTIVITIES: |  |  |  |  |  |  |  |  |
Proceeds from stock option exercises |  |  |  |  |  |  |  | 0 |
Purchase of Shares for Treasury |  |  |  |  |  |  |  | (7,347) |
Proceeds from Business Combination and PIPE Investment |  |  |  |  |  |  |  | 0 |
Transaction costs in connection with the Business Combination and PIPE Investment |  |  |  |  |  |  |  | 0 |
Proceeds from long-term debt |  |  |  |  |  |  |  | 0 |
Repayments of long-term debt |  |  |  |  |  |  |  | 0 |
Repayment of loans to employees |  |  |  |  |  |  |  | 0 |
Net cash provided by (used in) financing activities |  |  |  |  |  |  |  | (7,347) |
Effect of exchange rate changes on cash, cash equivalents and restricted cash |  |  |  |  |  |  |  | (7,395) |
NET INCREASE (DECREASE) IN CASH, CASH EQUIVALENTS AND RESTRICTED CASH |  |  |  |  |  |  |  | (474,808) |
CASH, CASH EQUIVALENTS AND RESTRICTED CASH BEGINNING OF PERIOD |  |  |  | $ 786,722 |  |  |  | 786,722 |
CASH, CASH EQUIVALENTS AND RESTRICTED CASH END OF PERIOD |  | 311,914 |  |  |  |  |  | 311,914 |
Adjustments |  |  |  |  |  |  |  |  |
OPERATING ACTIVITIES: |  |  |  |  |  |  |  |  |
Net loss |  | (62,000) |  |  |  |  |  | (62,000) |
Adjustments to reconcile net loss to net cash used in operating activities: |  |  |  |  |  |  |  |  |
Fair Value Adjustment of Warrants |  |  |  |  |  |  |  |  |
Loss on extinguishment of debt |  |  |  |  |  |  |  |  |
Impairment of goodwill |  | 62,000 |  |  |  |  |  | 62,000 |
Changes in operating assets and liabilities, net of effects from acquisitions: |  |  |  |  |  |  |  |  |
Net cash used in operating activities |  |  |  |  |  |  |  | 0 |
INVESTING ACTIVITIES: |  |  |  |  |  |  |  |  |
Net cash used in investing activities |  |  |  |  |  |  |  | 0 |
FINANCING ACTIVITIES: |  |  |  |  |  |  |  |  |
Net cash provided by (used in) financing activities |  |  |  |  |  |  |  | 0 |
CASH, CASH EQUIVALENTS AND RESTRICTED CASH END OF PERIOD |  | $ 0 |  |  |  |  |  | $ 0 |

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