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Income Taxes - Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Thousands | Dec. 31, 2022 | Dec. 31, 2021
--- | --- | ---
Deferred Tax Assets |  |
Start-up and organizational costs | $ 84 | $ 103
Goodwill | 12,281 | 18,774
Operating lease liabilities | 16,362 | 15,968
Accrued expenses | 9,326 | 10,345
Stock based compensation | 1,263 | 8,714
Net operating loss carryforwards | 131,317 | 130,242
Federal and state research tax credits | 1,828 | 1,828
Fixed assets | 393 | 480
Interest deduction limitation | 7,089 | 7,795
Outside basis differences | 650 | 1,972
Other | 6,677 | 9,236
Subtotal | 187,270 | 205,457
Valuation allowance | (70,790) | (101,345)
Total deferred tax assets | 116,480 | 104,112
Deferred Tax Liabilities |  |
Internally developed software costs | 11,173 | 12,501
Intangible assets | 89,784 | 48,677
Right-of-use assets - Operating | 12,696 | 12,284
Contract fulfillment costs | 4,501 | 8,317
Convertible debt | 0 | 17,604
Other | 2,136 | 5,387
Total deferred tax liabilities | 120,290 | 104,770
Net deferred tax assets (liabilities) | $ (3,810) | $ (658)

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