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Income Taxes (Tables) | 12 Months Ended
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Dec. 31, 2020
Income Tax Disclosure [Abstract] |
Schedule of Components of Income Tax Benefit | Our benefit for income taxes includes U.S. federal, state and foreign income taxes. The domestic and foreign components of our income (loss) before income taxes were as follows:
| Year Ended December 31,
| 2020 |  | 2019 |  | 2018
U.S. | $ | (423.4) |  |  | $ | 176.4 |  |  | $ | 138.9 |
Foreign | (72.0) |  |  | (50.0) |  |  | (65.9) |
Income (loss) before income taxes | $ | (495.4) |  |  | $ | 126.4 |  |  | $ | 73.0 |
Our benefit for income taxes was as follows:
| Year Ended December 31,
| 2020 |  | 2019 |  | 2018
Current: |  |  |  |  |
Federal | $ | (3.4) |  |  | $ | (0.7) |  |  | $ | (1.3) |
State | (1.1) |  |  | (0.6) |  |  | (0.7) |
Foreign | (19.3) |  |  | (7.8) |  |  | (10.3) |
| (23.8) |  |  | (9.1) |  |  | (12.3) |
Deferred: |  |  |  |  |
Federal | 2.9 |  |  | 4.4 |  |  | 1.4 |
State | 1.5 |  |  | 0.4 |  |  | 1.0 |
Foreign | 20.7 |  |  | 16.3 |  |  | 18.9 |
| 25.1 |  |  | 21.1 |  |  | 21.3 |
Benefit for income taxes | $ | 1.3 |  |  | $ | 12.0 |  |  | $ | 9.0 |
Schedule of Effective Income Tax Rate Reconciliation | A reconciliation of the statutory U.S. federal income tax rate to our effective income tax rate was as follows:
| Year Ended December 31,
| 2020 |  | 2019 |  | 2018
Expected provision at U.S. federal statutory tax rate | $ | 104.0 |  |  | $ | (26.5) |  |  | $ | (15.3) |
Research and development credits | 75.0 |  |  | — |  |  | — |
State taxes, net of federal benefit | 44.9 |  |  | (1.2) |  |  | 2.1 |
Effect of investment in Desert Newco | 10.4 |  |  | 7.1 |  |  | 13.1 |
TRA liability adjustment | (5.3) |  |  | 1.7 |  |  | 0.3 |
Foreign earnings | (5.4) |  |  | 2.1 |  |  | 3.1 |
Uncertain tax positions | (5.6) |  |  | — |  |  | — |
Other | 0.9 |  |  | (4.3) |  |  | 0.9 |
Effect of changes in valuation allowances | (217.6) |  |  | 33.1 |  |  | 4.8 |
Benefit for income taxes | $ | 1.3 |  |  | $ | 12.0 |  |  | $ | 9.0 |
Schedule of Deferred Tax Assets and Liabilities | The components of our deferred taxes were as follows:
| December 31,
| 2020 |  | 2019
DTAs: |  |  |
Investment in Desert Newco | $ | 1,099.5 |  |  | $ | 968.0 |
NOLs | 558.1 |  |  | 476.1 |
Credit and incentives | 77.1 |  |  | 3.0 |
Deferred interest | 26.4 |  |  | 34.1 |
Operating lease liabilities | 22.7 |  |  | 25.7 |
TRA liability | — |  |  | 24.4 |
Other | 4.7 |  |  | 5.9 |
Valuation allowance | (1,761.0) |  |  | (1,497.0) |
Total DTAs | 27.5 |  |  | 40.2 |
DTLs: |  |  |
Identified intangible assets | (101.8) |  |  | (112.8) |
Operating lease assets | (12.5) |  |  | (22.7) |
Total DTLs | (114.3) |  |  | (135.5) |
Net DTLs | $ | (86.8) |  |  | $ | (95.3) |
Summary of Operating Loss Carryforwards | As of December 31, 2020, we had U.S. federal, state and foreign gross NOLs, credits and incentives, a portion of which will begin to expire in 2030, as follows:
| Gross NOLs, Credits and Incentives |  | Portion Subject to a Valuation Allowance
Federal NOLs and credits | $ | 2,112.3 |  |  | $ | 2,112.3 |
State NOLs, credits and incentives | 2,586.4 |  |  | 2,586.4 |
Foreign NOLs | 36.0 |  |  | 23.9 |
Total NOLs, credits and incentives | $ | 4,734.7 |  |  | $ | 4,722.6 |
Summary of Tax Credit Carryforwards | As of December 31, 2020, we had U.S. federal, state and foreign gross NOLs, credits and incentives, a portion of which will begin to expire in 2030, as follows:
| Gross NOLs, Credits and Incentives |  | Portion Subject to a Valuation Allowance
Federal NOLs and credits | $ | 2,112.3 |  |  | $ | 2,112.3 |
State NOLs, credits and incentives | 2,586.4 |  |  | 2,586.4 |
Foreign NOLs | 36.0 |  |  | 23.9 |
Total NOLs, credits and incentives | $ | 4,734.7 |  |  | $ | 4,722.6 |
Schedule of Unrecognized Tax Benefits Roll Forward | Our liability for unrecognized tax benefits was as follows:
| December 31,
| 2020 |  | 2019
Balance at beginning of period | $ | 9.3 |  |  | $ | 2.1 |
Gross increases - tax positions in prior period | 24.2 |  |  | 4.5 |
Gross increases - tax positions in current period | 13.0 |  |  | 2.7 |
Current year acquisitions | 20.2 |  |  | — |
Balance at end of period | $ | 66.7 |  |  | $ | 9.3 |

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