Debt Obligations Schedule of Debt Obligations (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013
Debt Instrument [Line Items]
Long-term Debt, Gross	$ 100,000
Less: Unamortized discount on notes payable	1,207
Less: Current portion	98,793
Total long-term portion of debt	0
Convertible notes
Debt Instrument [Line Items]
Long-term Debt, Gross	75,000
Convertible notes payable—related party \| Convertible notes
Debt Instrument [Line Items]
Long-term Debt, Gross	$ 25,000

Amount of long-term debt before deduction of unamortized discount or premium. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt, with initial maturities beyond one year or the normal operating cycle, if longer.

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The amount of debt discount that was originally recognized at the issuance of the instrument that has yet to be amortized.

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Amount of long-term debt, after unamortized discount or premium, scheduled to be repaid within one year or the normal operating cycle, if longer. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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Carrying amount of long-term debt, net of unamortized discount or premium, excluding amounts to be repaid within one year or the normal operating cycle, if longer (current maturities). Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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