v2.4.0.8

Basis of presentation and summary of significant accounting policies (Details 2) (USD $) In Millions, unless otherwise specified | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2013 | Sep. 30, 2012 | Sep. 30, 2013 | Sep. 30, 2012
Changes in accumulated other comprehensive loss by component |  |  |  |
Balance at beginning of period |  |  | $ 9.4 |
Other comprehensive income (loss): |  |  |  |
Foreign currency translation adjustments | 10.7 | 19.3 | (19.3) | 22.6
Tax expense |  | 3.1 | (1.9) | (19.1)
Total Other comprehensive income (loss) | 10.8 | 19.1 | (18.2) | 22.3
Balance at end of period | (8.7) |  | (8.7) |
Foreign currency translation |  |  |  |
Changes in accumulated other comprehensive loss by component |  |  |  |
Balance at beginning of period | (17.4) | (0.1) | 12.7 | (3.4)
Other comprehensive income (loss): |  |  |  |
Foreign currency translation adjustments | 10.7 | 19.3 | (19.3) | 22.6
Balance at end of period | (6.7) | 19.2 | (6.7) | 19.2
Cash flow hedges |  |  |  |
Changes in accumulated other comprehensive loss by component |  |  |  |
Balance at beginning of period | (0.4) | (1.5) | (1.4) | (1.4)
Other comprehensive income (loss): |  |  |  |
Net change from periodic revaluations | (0.2) | (0.5) | 0.9 | (1.4)
Tax benefit | 0.1 | 0.2 | (0.4) | 0.6
Total Other comprehensive loss before reclassifications, net of tax | (0.1) | (0.3) | 0.5 | (0.8)
Tax expense | (0.1) |  | (0.4) | (0.3)
Total amount reclassified from Accumulated other comprehensive loss, net of tax | 0.2 | 0.1 | 0.6 | 0.5
Total Other comprehensive income (loss) | 0.1 | (0.2) | 1.1 | (0.3)
Balance at end of period | (0.3) | (1.7) | (0.3) | (1.7)
Cash flow hedges | Amount reclassified from accumulated other comprehensive income |  |  |  |
Other comprehensive income (loss): |  |  |  |
Net amount reclassified to earnings: | 0.3 | 0.1 | 1.0 | 0.8
Cash flow hedges | Amount reclassified from accumulated other comprehensive income | Interest rate swaps |  |  |  |
Other comprehensive income (loss): |  |  |  |
Net amount reclassified to earnings: | 0.3 | 0.4 | 1.2 | 1.2
Cash flow hedges | Amount reclassified from accumulated other comprehensive income | Fuel commodity swaps |  |  |  |
Other comprehensive income (loss): |  |  |  |
Net amount reclassified to earnings: |  | $ (0.3) | $ (0.2) | $ (0.4)

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