Fair Value Measurements (Details Textual) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2013	Dec. 31, 2012
Deferred Acquisition Consideration, Fixed Payments	$ 4,383	$ 1,651
Business Acquisition, Contingent Consideration Potential Cash Payment, Total	$ 102,754	$ 196,446
6.75% Notes [Member]
Debt Instrument, Interest Rate, Stated Percentage	6.75%
11% Notes [Member]
Debt Instrument, Interest Rate, Stated Percentage		11.00%

Contractual interest rate for funds borrowed, under the debt agreement.

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 22

-Article 5

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.22(a)(1))

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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