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Royalty Monetization - Additional Information (Detail)
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12 Months Ended |
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3 Months Ended |
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0 Months Ended |
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Dec. 31, 2013
USD ($)
JPY
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Dec. 31, 2013
JPY (¥)
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Dec. 31, 2012
USD ($)
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Dec. 31, 2011
USD ($)
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Sep. 30, 2013
USD ($)
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Sep. 30, 2013
PhaRMA Notes [Member]
USD ($)
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Dec. 31, 2013
PhaRMA Notes [Member]
USD ($)
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Mar. 09, 2011
PhaRMA Notes [Member]
USD ($)
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Mar. 09, 2011
JPR Royalty Sub LLC [Member]
USD ($)
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Sep. 30, 2013
JPR Royalty Sub LLC [Member]
USD ($)
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| Debt Instrument [Line Items] |
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| Proceeds from non-recourse notes |
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$ 30,000,000 |
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| Net proceeds from transaction |
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22,691,000 |
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| Transaction costs |
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4,309,000 |
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| Establishment costs |
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3,000,000 |
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| Interest Due |
3,867,000 |
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1,998,000 |
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2,356,000 |
| Aggregate principal amount |
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30,000,000 |
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| Percentage of interest on notes secured |
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14.00% |
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| Pharma Notes Interest payment date of first payment |
Sep.
01,
2011 |
Sep.
01,
2011 |
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| Royalty payments received |
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1,844 |
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| Interest shortfall |
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2,356 |
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| Aggregate fair value of PhaRMA Notes |
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30,000,000 |
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| Yen rate per dollar |
100 |
100 |
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| Currency hedge premium payable period range one |
2014 |
2014 |
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| Currency hedge premium payable period range two |
2020 |
2020 |
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| Payment of premium |
1,950,000 |
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| Minimum currency value required for payment of premium on specified date |
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100,000 |
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| Cumulative mark-to-market adjustments - gain/loss |
5,294,000 |
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(749,000) |
(4,000,000) |
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| Currency Hedge Agreement |
0 |
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5,180,000 |
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| Currency hedge agreement termination period range one |
2016 |
2016 |
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| Currency hedge agreement termination period range two |
2020 |
2020 |
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| Termination fee |
1,950,000 |
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| Termination maximum obligation |
5,850,000 |
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| Maximum amount of hedge collateral |
$ 13,650,000 |
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