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Supplemental Cash Flow Information (Tables) | 3 Months Ended
--- | ---
Mar. 31, 2013
Supplemental Cash Flow Elements [Abstract] |
Supplemental Cash Flow Information |
| Quarter Ended
| March 31,
| 2013 |  | 2012
Supplemental disclosure of cash flow information: |  |  |
Interest paid | $ | 0.4 |  |  | $ | 0.4 |
Income taxes paid | $ | 0.7 |  |  | $ | 0.2 |
Supplemental disclosure of non-cash transactions: |  |  |
Stock repurchases not yet settled (accrued in accounts payable) | $ | 1.5 |  |  | $ | — |
Non-cash capital expenditures | $ | 2.7 |  |  | $ | 1.8 |
Capital leases acquired | $ | 0.1 |  |  | $ | — |

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