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Equity (Details) (USD $) | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2012 | Sep. 30, 2011 | Sep. 30, 2012 | Sep. 30, 2011
Reconciliation of equity attributable to non-controlling interests |  |  |  |
Noncontrolling interests, beginning of period | $ 2,400,000 | $ 79,100,000 | $ 1,488,000 | $ 52,900,000
Net income (loss) attributable to noncontrolling interests, net of tax | 0 | 1,900,000 | 0 | 32,300,000
Currency translation adjustment | 0 | (800,000) | 100,000 | 4,900,000
Deconsolidation of noncontrolling interest | 0 | 0 | (500,000) | 0
Distributions to noncontrolling interests | 0 | (14,100,000) | 1,300,000 | (24,000,000)
Acquisition of noncontrolling interests | 0 | (61,700,000) | 0 | (61,700,000)
Noncontrolling interests, end of period | $ 2,388,000 | $ 4,400,000 | $ 2,388,000 | $ 4,400,000

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