Discontinued Operations (Details Textual) (USD $) In Millions, unless otherwise specified	12 Months Ended
Dec. 31, 2010	Dec. 31, 2009	Dec. 31, 2008
Discontinued Operations (Textual) [Abstract]
Note receivable at fair value received In exchange for Company equity interests	$ 0.4
Pretax gain related to sale	0.6
Carrying amount of goodwill			6.9
Impairment charge to write down the carrying value of goodwill		6.6
Implied fair value of goodwill		$ 0.3
Discount rate which reflects market based estimates of capital costs		16.00%

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Discount rate which reflects market based estimates of capital costs.

+ References

No definition available.

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- Definition

Disposal Group Including Discontinued Operation Note Receivable Net Of Discount.

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No definition available.

+ Details

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- Definition

Implied fair value of goodwill.

+ References

No definition available.

+ Details

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- Definition

Pretax gain (loss), not previously recognized and resulting from the sale of a business component, which is recognized at the date of sale. A gain (loss) reflects the amount by which the consideration received exceeds (is exceeded by) the net carrying amount (reflecting previous provisions for loss on disposal, if any) of the disposal group.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 144

-Paragraph 43

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 144

-Paragraph 47

-Subparagraph b

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- Definition

For the disposal group, including a component of the entity (discontinued operation), carrying amount as of goodwill (adjusted for any amortization recognized prior to adoption of FAS 142 and impairment charges), which is the cumulative amount paid in excess of the fair value of net assets acquired in one or more business combination transactions.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 144

-Paragraph 47

-Subparagraph a

+ Details

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- Definition

Loss recognized during the period that results from the write-down of goodwill after comparing the implied fair value of reporting unit goodwill with the carrying amount of that goodwill. Goodwill is assessed at least annually for impairment.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 142

-Paragraph 45

-Subparagraph e(2)

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 142

-Paragraph 43

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 142

-Paragraph 47

-Subparagraph b

Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 142

-Paragraph 20

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