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Fair Value Measurements (Tables) | 12 Months Ended
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Dec. 31, 2012
Fair Value, Inputs, Level 1 [Member] |
Fair Value, Liabilities Measured on Recurring and Nonrecurring Basis [Table Text Block] | The following tables present certain information for our financial assets that is measured at fair value on a recurring basis at December 31, 2012 and 2011:
|  | Level 1 2012 |  | Level 1 2011
|  | Carrying Amount |  | Fair Value |  | Carrying Amount |  | Fair Value
Liabilities: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Long term debt |  | $ | 429,193 |  |  | $ | 467,500 |  |  | $ | 344,439 |  |  | $ | 367,400 |
Fair Value, Inputs, Level 3 [Member] |
Fair Value, Liabilities Measured on Recurring and Nonrecurring Basis [Table Text Block] | The following table presents changes in Deferred Acquisition Consideration.
|  | Fair Value Measurements Using Significant Unobservable Inputs (Level 3)
|  | 2012 |  | 2011
Beginning Balance of contingent payments |  | $ | 129,759 |  |  | $ | 98,534 |
Payments |  |  | (55,071 | ) |  |  | (26,656 | )
Grants |  |  | 63,972 |  |  |  | 46,292 |
Redemption value adjustments |  |  | 55,737 |  |  |  | 13,416 |
Transfers (to) from fixed payments |  |  | 159 |  |  |  | (1,467 | )
Foreign translation adjustment |  |  | 239 |  |  |  | (360 | )
Ending Balance of contingent payments |  | $ | 194,795 |  |  | $ | 129,759

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- Definition Tabular disclosure of liabilities, including [financial] instruments measured at fair value that are classified in stockholders' equity, if any, by class that are measured at fair value on a recurring and/or nonrecurring basis. The disclosures contemplated herein include the fair value measurements at the reporting date by the level within the fair value hierarchy in which the fair value measurements in their entirety fall, segregating fair value measurements using quoted prices in active markets for identical assets (Level 1), significant other observable inputs (Level 2), and significant unobservable inputs (Level 3). Where the quoted price in an active market for the identical liability is not available, the Level 1 input is the quoted price of an identical liability when traded as an asset. + References Reference 1: 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. Reference 2: 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 3: 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 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a),(b) -URI http://asc.fasb.org/extlink&oid=7578670&loc=d3e19207-110258 + Details
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