v2.4.0.8

Schedule of Long-Term Obligations (Parenthetical) (Details) | Sep. 30, 2013 | Dec. 31, 2012 | Dec. 31, 2011
--- | --- | --- | ---
Notes Payable |  |  |
Debt Instrument |  |  |
Weighted average interest rates | 1.80% | 1.70% | 2.00%
Other Long Term Debt |  |  |
Debt Instrument |  |  |
Weighted average interest rates | 3.50% | 3.30% | 3.20%

X
- Details
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Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Reflects the calculation as of the balance sheet date of the average interest rate weighted by the amount of debt outstanding by type or by instrument at that time. + References No definition available. + Details
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Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant