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License Agreements - Additional Information (Detail) (USD $) | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Jun. 30, 2013 | Mar. 31, 2013 | Jun. 30, 2012 | Mar. 31, 2012 | Jun. 30, 2013 | Jun. 30, 2012 | Dec. 31, 2012
Licenses Agreements [Line Items] |  |  |  |  |  |  |
Royalty payments on products | $ 700,000 |  | $ 700,000 |  | $ 1,600,000 | $ 1,300,000 |
Payments made relating to the manufacturing of the products |  | 3,600,000 |  | 3,900,000 | 7,600,000 | 7,500,000 |
Current asset, warrant claim | 200,000 |  |  |  | 200,000 |  | 2,038,000
Product Warranty |  |  |  |  |  |  |
Licenses Agreements [Line Items] |  |  |  |  |  |  |
Current asset, warrant claim | 0 |  |  |  | 0 |  | 1,800,000
Royalty |  |  |  |  |  |  |
Licenses Agreements [Line Items] |  |  |  |  |  |  |
Royalties owed | 800,000 |  |  |  | 800,000 |  | 800,000
Royalty | Platelet system |  |  |  |  |  |  |
Licenses Agreements [Line Items] |  |  |  |  |  |  |
Royalty rate applied towards sale of products |  |  |  |  | 10.00% |  |
Royalty | Plasma system |  |  |  |  |  |  |
Licenses Agreements [Line Items] |  |  |  |  |  |  |
Royalty rate applied towards sale of products |  |  |  |  | 3.00% |  |
Royalty | Red blood cell system |  |  |  |  |  |  |
Licenses Agreements [Line Items] |  |  |  |  |  |  |
Royalty rate applied towards sale of products |  |  |  |  | 5.00% |  |
Royalty | Illuminators |  |  |  |  |  |  |
Licenses Agreements [Line Items] |  |  |  |  |  |  |
Royalty rate applied towards sale of products |  |  |  |  | 6.50% |  |
Manufacturing Costs |  |  |  |  |  |  |
Licenses Agreements [Line Items] |  |  |  |  |  |  |
Royalties owed | $ 4,900,000 |  |  |  | $ 4,900,000 |  | $ 6,200,000

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- Definition Carrying value as of the balance sheet date of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.15(5)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03.15(a)) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 15 -Subparagraph a -Article 7 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 15 -Subparagraph 5 -Article 9 + Details
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