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Organization and Summary of Significant Accounting Policies - Additional Information (Detail) $ in Thousands |  | 3 Months Ended | 6 Months Ended |
--- | --- | --- | --- | ---
Jan. 01, 2016 USD ($) | Jun. 30, 2016 USD ($) | Jun. 30, 2015 | Jun. 30, 2016 USD ($) Segment | Jun. 30, 2015 | Dec. 31, 2015 USD ($)
Organization And Summary Of Significant Accounting Policies [Line Items] |  |  |  |  |  |
Cash and investments in marketable securities |  | $ 274,854 |  | $ 274,854 |  | $ 308,944
Senior secured notes |  | 250,000 |  | 250,000 |  |
Debt and capital lease obligation |  | 256,400 |  | 256,400 |  |
Capital lease obligations |  | 6,400 |  | 6,400 |  |
Capital lease obligations, current portion |  | $ 3,616 |  | $ 3,616 |  | $ 4,756
Number of business segments | Segment |  |  |  | 1 |  |
Senior Secured Notes |  |  |  |  |  |
Organization And Summary Of Significant Accounting Policies [Line Items] |  |  |  |  |  |
Reclassification of capitalized issuance costs | $ 400 |  |  |  |  |
Liability Related To Future Royalties Liability Balances |  |  |  |  |  |
Organization And Summary Of Significant Accounting Policies [Line Items] |  |  |  |  |  |
Reclassification of capitalized issuance costs | $ 3,000 |  |  |  |  |
India |  |  |  |  |  |
Organization And Summary Of Significant Accounting Policies [Line Items] |  |  |  |  |  |
Effective income tax rate – India |  | 35.00% | 35.00% | 35.00% | 35.00% |

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- Definition Amount equal to the present value (the principal) at the beginning of the lease term of minimum lease payments during the lease term (excluding that portion of the payments representing executory costs such as insurance, maintenance, and taxes to be paid by the lessor, together with any profit thereon) net of payments or other amounts applied to the principal through the balance sheet date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6455398&loc=d3e45280-112737 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)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(a)(16)) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 + Details
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