v2.4.0.8

Financial Assets and Liabilities Measured at Fair Value on a Recurring Basis (Details) (Fair Value, Measurements, Recurring, USD $) In Thousands, unless otherwise specified | Sep. 30, 2013 | Dec. 31, 2012 | Dec. 31, 2011
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Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis |  |  |
Fair value assets measured on recurring basis | $ 23,899 | $ 19,492 | $ 13,413
Fair value liabilities measured on recurring basis | 103,066 | 125,495 | 107,029
Fair Value, Inputs, Level 2 |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis |  |  |
Fair value assets measured on recurring basis | 23,899 | 19,492 | 13,413
Fair value liabilities measured on recurring basis | 48,581 | 35,486 | 24,647
Fair Value, Inputs, Level 3 |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis |  |  |
Fair value liabilities measured on recurring basis | 54,485 | 90,009 | 82,382
Foreign Exchange Forward |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis |  |  |
Fair value liabilities measured on recurring basis | 15,403 |  |
Foreign Exchange Forward | Fair Value, Inputs, Level 2 |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis |  |  |
Fair value liabilities measured on recurring basis | 15,403 |  |
Deferred Compensation Liabilities |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis |  |  |
Fair value liabilities measured on recurring basis | 23,572 | 19,843 | 14,071
Deferred Compensation Liabilities | Fair Value, Inputs, Level 2 |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis |  |  |
Fair value liabilities measured on recurring basis | 23,572 | 19,843 | 14,071
Contingent Consideration Liabilities |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis |  |  |
Fair value liabilities measured on recurring basis | 54,485 | 90,009 | 82,382
Contingent Consideration Liabilities | Fair Value, Inputs, Level 3 |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis |  |  |
Fair value liabilities measured on recurring basis | 54,485 | 90,009 | 82,382
Interest Rate Swap |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis |  |  |
Fair value assets measured on recurring basis | 52 |  |
Fair value liabilities measured on recurring basis | 9,606 | 15,643 | 10,576
Interest Rate Swap | Fair Value, Inputs, Level 2 |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis |  |  |
Fair value assets measured on recurring basis | 52 |  |
Fair value liabilities measured on recurring basis | 9,606 | 15,643 | 10,576
Cash Surrender Value |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis |  |  |
Fair value assets measured on recurring basis | 23,847 | 19,492 | 13,413
Cash Surrender Value | Fair Value, Inputs, Level 2 |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis |  |  |
Fair value assets measured on recurring basis | $ 23,847 | $ 19,492 | $ 13,413

X
- Definition This element represents the aggregate of the assets reported on the balance sheet at period end measured at fair value by the entity. This element is intended to be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=7578670&loc=d3e19207-110258 + Details
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Balance Type: | debit
Period Type: | instant

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- Details
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X
- Definition This element represents the aggregate of the liabilities reported on the balance sheet at period end measured at fair value by the entity. This element is intended to be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=7578670&loc=d3e19207-110258 + Details
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Data Type: | xbrli:monetaryItemType
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