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Income Taxes - Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Millions | Dec. 31, 2021 | Dec. 31, 2020
--- | --- | ---
Deferred tax assets: |  |
Contract liabilities | $ 45.3 | $ 13.2
Equity compensation plans | 22.7 | 20.1
Net operating loss and credit carryforwards, net | 28.9 | 22.9
Payroll and benefits | 37.6 | 21.8
Operating lease liabilities | 51.6 | 47.5
Accounts receivable | 18.0 | 26.0
Other | 20.5 | 15.9
Total deferred tax assets | 224.6 | 167.4
Deferred tax liabilities: |  |
Acquisition-related intangibles | 322.2 | 76.5
Property and equipment | 47.6 | 39.9
International investments | 0.0 | 19.2
Operating lease right-of-use assets | 35.6 | 32.5
Other | 26.5 | 23.3
Total deferred tax liabilities | 431.9 | 191.4
Deferred tax asset valuation allowance | 17.0 | 16.9
Net deferred tax liabilities | $ 224.3 | $ 40.9

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