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Taxation (Deferred Tax Assets and Liabilities, Narrative) (Details) $ in Millions | 12 Months Ended
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Dec. 31, 2021 USD ($)
Income Tax Disclosure [Abstract] |
Net operating losses from PRC entities available to offset against future net profit for income tax purposes | $ 1,850.0
Deferred tax assets generated from net operating losses offset by valuation allowance | 285.8
PRC net operating losses generated from previous years, expired | $ 48.5

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- Definition Amount of operating loss carryforward, before tax effects, available to reduce future taxable income under enacted tax laws. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=121826272&loc=d3e32559-109319 + Details
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