Debt - Summary of Debt (Detail) - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015
Debt Instrument [Line Items]
Total debt	$ 198,461	$ 211,132
Fair value of embedded derivative	0	82
Unamortized debt discount	(6,498)	(8,749)
Debt issuance costs	(312)	(450)
Long-term portion of debt	$ 191,651	202,015
Senior Subordinated Notes \| 2018 Notes
Debt Instrument [Line Items]
Effective interest rate	6.00%
Total debt	$ 50,389	61,632
Senior Subordinated Notes \| 2019 Notes
Debt Instrument [Line Items]
Effective interest rate	5.00%
Total debt	$ 148,072	$ 149,500

Long Term Debt And Derivative Liabilities Non Current

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- Definition

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

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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- Definition

Amount, after accumulated amortization, of debt discount.

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- Definition

Amount, after accumulated amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.

+ References

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- Definition

Net fair value as of the balance sheet date of the embedded derivative or group of embedded derivatives classified as assets, net of those classified as liabilities.

+ References

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- Definition

Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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