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Income Taxes - Deferred Income Tax Assets and Liabilities (Details) - USD ($) $ in Thousands | Dec. 31, 2023 | Dec. 31, 2022
--- | --- | ---
Deferred income tax assets: |  |
Compensation accruals | $ 4,137 | $ 3,306
Reserves | 5,906 | 4,111
Sale-leasebacks and other accruals | 49,300 | 32,945
Net operating losses | 28,565 | 18,395
Interest limitation | 8,273 | 0
Energy efficiency | 82,827 | 71,433
Deferred revenue | 2,114 | 2,132
Gross deferred income tax assets | 181,122 | 132,322
Valuation allowance | (3,704) | (3,621)
Total deferred income tax assets | 177,418 | 128,701
Deferred income tax liabilities: |  |
Depreciation | (137,966) | (122,762)
Deferred effect of derivative liability | (2,166) | (1,640)
Italy intangibles | (1,324) | 0
Outside basis difference | (6,599) | (5,038)
Interest rate swaps | (841) | (1,347)
Total deferred income tax liabilities | (155,486) | (134,837)
Deferred income tax assets (liabilities), net | 21,932 |
Deferred income tax assets (liabilities), net |  | (6,136)
Canada |  |
Deferred income tax liabilities: |  |
Foreign Authority | (5,738) | (3,098)
United Kingdom |  |
Deferred income tax liabilities: |  |
Foreign Authority | $ (852) | $ (952)

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