| In millions, except per share items | Jun-30-23 | Mar-31-23 | Dec-31-22 | Sep-30-22 | Jun-30-22 | Mar-31-22 | Dec-31-21 | Sep-30-21 |
| | 10-Q | 10-Q | 10-K | 10-Q | 10-Q | 10-Q | 10-K | 10-Q |
| ASSETS | | | | | | | | |
| CURRENT ASSETS: | | | | | | | | |
| Cash and cash equivalents | 177.7 | 100.8 | 110.3 | 124.8 | 240.5 | 253.8 | 268.3 | |
| Accounts Receivable, after Allowance for Credit Loss, Current | 15.2 | 7.4 | 9.1 | 10.9 | 9.4 | 9.6 | 8.3 | |
| Inventories | 18.9 | 18.9 | 19.1 | 17.0 | 14.0 | 13.1 | 12.0 | |
| Prepaid expenses and other current assets | 4.3 | 2.9 | 3.6 | 3.4 | 2.3 | 3.0 | 2.9 | |
| Total current assets | 216.1 | 130.0 | 142.1 | 156.1 | 266.2 | 279.5 | 291.4 | 0.3 |
| PROPERTY AND EQUIPMENT, net | 7.3 | 6.8 | 6.5 | 5.7 | 4.3 | 2.5 | 2.3 | |
| OPERATING LEASE RIGHT OF USE ASSETS | 6.2 | 6.5 | 6.4 | 6.6 | 7.0 | 1.4 | | |
| INTANGIBLE ASSETS, net | 100.8 | 105.6 | 105.6 | 110.5 | 0.4 | 0.1 | 0.2 | |
| GOODWILL | 163.2 | 161.4 | 161.5 | 160.3 | 1.2 | | | |
| OTHER ASSETS | 5.6 | 5.6 | 3.1 | 4.0 | 7.2 | 3.2 | 1.6 | |
| Total assets | 499.2 | 416.0 | 425.3 | 443.2 | 286.3 | 286.9 | 295.6 | 253.4 |
| |
| LIABILITIES AND STOCKHOLDERS’ EQUITY | | | | | | | | |
| CURRENT LIABILITIES: | | | | | | | | |
| Accounts payable and other accrued expenses | 17.7 | 13.6 | 14.7 | 9.3 | 6.3 | | 4.9 | |
| Accrued compensation expenses | 6.7 | 7.7 | 3.9 | 4.9 | 4.9 | 3.6 | 2.6 | |
| Operating lease liabilities, current | 1.4 | 1.5 | 1.3 | | | | | |
| Other liabilities | 10.2 | 0.7 | 0.5 | | 0.0 | 5.2 | 0.0 | |
| Total current liabilities | 36.0 | 23.5 | 20.4 | 18.6 | 15.6 | 12.9 | 10.7 | 0.3 |
| OPERATING LEASE LIABILITIES NONCURRENT | 4.9 | | | | | | | |
| |
| EARNOUT LIABILITY | | | | | | | | |
| DEFERRED TAX LIABILITIES | 1.8 | 1.8 | 1.8 | 13.0 | | | | |
| Total liabilities | 115.7 | 71.4 | 40.5 | 61.1 | 39.4 | 87.2 | 230.1 | 33.3 |
| |
| COMMITMENTS AND CONTINGENCIES (Note 15) | | | | | | | | |
| STOCKHOLDERS’ EQUITY: | | | | | | | | |
| Common stock | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | |
| Additional paid-in capital | 658.5 | 561.2 | 535.9 | 525.3 | 362.0 | 348.7 | 294.2 | |
| Accumulated other comprehensive loss | 0.0 | 0.0 | 0.0 | 0.0 | -0.1 | -0.1 | 0.0 | |
| Accumulated deficit | -275.1 | -216.6 | -154.8 | -147.6 | -115.0 | -148.9 | -228.7 | -32.9 |
| Total stockholders’ equity of Navitas Semiconductor Corporation | 383.4 | 344.6 | 381.1 | 377.7 | 246.9 | 199.7 | 65.5 | -32.9 |
| Noncontrolling interest | | | 3.6 | 4.4 | | | | |
| Total stockholders’ equity | 383.4 | 344.6 | 384.8 | 382.1 | | | 65.5 | |
| Total liabilities and stockholders’ equity | 499.2 | 416.0 | 425.3 | 443.2 | 286.3 | 286.9 | 295.6 | 253.4 |