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Fair Value Measurements (Tables) | 9 Months Ended
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Sep. 30, 2012
Fair Value |
Schedule of Financial Instruments Recorded at Fair Value |
|  | Fair Value Measurements (in millions) |
|  | September 30, 2012 |  |  | December 31, 2011 |
|  | Level 1 |  |  | Level 2 |  |  | Level 3 |  |  | Total |  |  | Level 1 |  |  | Level 2 |  |  | Level 3 |  |  | Total |
Assets: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Cash equivalents (a) |  |  | - |  |  | $ | 302.5 |  |  |  | - |  |  | $ | 302.5 |  |  |  | - |  |  | $ | 37.4 |  |  |  | - |  |  | $ | 37.4 |
Deferred compensation asset (b) |  |  | - |  |  |  | 2.7 |  |  |  | - |  |  |  | 2.7 |  |  |  | - |  |  |  | 2.3 |  |  |  | - |  |  |  | 2.3 |
Liabilities: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Deferred compensation obligation (b) |  |  | - |  |  |  | 3.0 |  |  |  | - |  |  |  | 3.0 |  |  |  | - |  |  |  | 2.6 |  |  |  | - |  |  |  | 2.6 |
Schedule of Fair Value of Debt |
|  | September 30, 2012 |  |  | December 31, 2011 |
|  | Carrying Value |  |  | Fair Value |  |  | Carrying Value |  |  | Fair Value |
Credit facility term loan due May 31, 2013 |  | $ | 85.0 |  |  | $ | 93.0 |  |  |  | - |  |  |  | - |
Credit facility term loan due May 31, 2012 |  |  | - |  |  |  | - |  |  | $ | 85.0 |  |  | $ | 72.8 |
Convertible preferred stock |  |  | 97.4 |  |  |  | 97.4 |  |  |  | 88.6 |  |  |  | 88.6 |
3.0% convertible senior notes, due October 1, 2014 |  |  | 530.0 |  |  |  | 219.6 |  |  |  | 530.0 |  |  |  | 246.1 |

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- Definition The entire disclosure of the fair value measurement of assets and liabilities, which includes financial instruments measured at fair value that are classified in shareholders' equity, which may be measured on a recurring or nonrecurring basis. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=7578670&loc=d3e19279-110258 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=7578670&loc=d3e19190-110258 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 157 -Paragraph 33 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=7578670&loc=d3e19207-110258 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 157 -Paragraph 32 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 107 -Paragraph 10 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 7: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 157 -Paragraph 6 -Footnote 4 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
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