Collaboration and Licensing Revenue | Collaboration and Licensing Revenue The Company generates revenue through contractual agreements with collaborators (known as exclusive channel collaborations, "ECC" or "ECCs") and licensing agreements whereby the collaborators or the licensees obtain exclusive access to the Company's proprietary technologies for use in the research, development and commercialization of products and/or treatments in a contractually specified field of use. Upfront and milestone payments are typically deferred and recognized over the expected life of the Company's technology platform using a straight-line approach. The Company recognizes the reimbursement payments received for research and development services in the period in which the services are performed and collection is reasonably assured. The following tables summarize the amounts recorded as revenue in the consolidated statements of operations for each significant counterparty to a collaboration or licensing agreement for the three and nine months ended September 30, 2017 and 2016 . Three Months Ended September 30, 2017 Revenue Recognized From Total Upfront and Milestone Payments Research and Development Services ZIOPHARM Oncology, Inc. $ 4,843 $ 5,530 $ 10,373 Oragenics, Inc. 262 213 475 Fibrocell Science, Inc. 604 1,079 1,683 Genopaver, LLC 68 1,354 1,422 S & I Ophthalmic, LLC — 376 376 OvaXon, LLC — 262 262 Intrexon Energy Partners, LLC 625 1,278 1,903 Persea Bio, LLC 125 141 266 Ares Trading S.A. 1,597 759 2,356 Intrexon Energy Partners II, LLC 500 316 816 Intrexon T1D Partners, LLC 287 1,175 1,462 Harvest start-up entities (1) 616 3,404 4,020 Other 979 1,762 2,741 Total $ 10,506 $ 17,649 $ 28,155 (1) For the three months ended September 30, 2017 , revenue recognized from collaborations with Harvest start-up entities include Thrive Agrobiotics, Inc.; Exotech Bio, Inc.; Relieve Genetics, Inc.; AD Skincare, Inc.; Genten Therapeutics, Inc.; and CRS Bio, Inc. Three Months Ended September 30, 2016 Revenue Recognized From Total Upfront and Milestone Payments Research and Development Services ZIOPHARM Oncology, Inc. $ 4,843 $ 5,586 $ 10,429 Oragenics, Inc. 262 294 556 Fibrocell Science, Inc. 604 563 1,167 Genopaver, LLC 68 1,625 1,693 S & I Ophthalmic, LLC — 2,782 2,782 OvaXon, LLC — 709 709 Intrexon Energy Partners, LLC 625 4,230 4,855 Persea Bio, LLC 125 208 333 Ares Trading S.A. 1,597 719 2,316 Intrexon Energy Partners II, LLC 500 372 872 Intrexon T1D Partners, LLC 276 511 787 Harvest start-up entities (1) 425 868 1,293 Other 895 1,903 2,798 Total $ 10,220 $ 20,370 $ 30,590 (1) For the three months ended September 30, 2016 , revenue recognized from collaborations with Harvest start-up entities include Thrive Agrobiotics, Inc.; Exotech Bio, Inc.; Relieve Genetics, Inc.; and AD Skincare, Inc. Nine Months Ended September 30, 2017 Revenue Recognized From Total Upfront and Milestone Payments Research and Development Services ZIOPHARM Oncology, Inc. $ 14,527 $ 16,795 $ 31,322 Oragenics, Inc. 786 733 1,519 Fibrocell Science, Inc. 1,814 3,561 5,375 Genopaver, LLC 205 4,410 4,615 S & I Ophthalmic, LLC — 751 751 OvaXon, LLC — 1,966 1,966 Intrexon Energy Partners, LLC 1,875 7,034 8,909 Persea Bio, LLC 375 446 821 Ares Trading S.A. 4,791 3,683 8,474 Intrexon Energy Partners II, LLC 1,500 1,421 2,921 Intrexon T1D Partners, LLC 823 3,059 3,882 Harvest start-up entities (1) 1,823 10,012 11,835 Other 3,735 3,259 6,994 Total $ 32,254 $ 57,130 $ 89,384 (1) For the nine months ended September 30, 2017 , revenue recognized from collaborations with Harvest start-up entities include Thrive Agrobiotics, Inc.; Exotech Bio, Inc.; Relieve Genetics, Inc.; AD Skincare, Inc.; Genten Therapeutics, Inc.; and CRS Bio, Inc. Nine Months Ended September 30, 2016 Revenue Recognized From Total Upfront and Milestone Payments Research and Development Services ZIOPHARM Oncology, Inc. $ 6,687 $ 17,693 $ 24,380 Oragenics, Inc. 786 1,083 1,869 Fibrocell Science, Inc. 1,814 2,604 4,418 Genopaver, LLC 205 4,703 4,908 S & I Ophthalmic, LLC — 6,326 6,326 OvaXon, LLC — 2,211 2,211 Intrexon Energy Partners, LLC 1,875 11,180 13,055 Persea Bio, LLC 375 613 988 Ares Trading S.A. 4,791 2,148 6,939 Intrexon Energy Partners II, LLC 1,500 816 2,316 Intrexon T1D Partners, LLC 554 543 1,097 Harvest start-up entities (1) 776 1,890 2,666 Other 4,684 6,287 10,971 Total $ 24,047 $ 58,097 $ 82,144 (1) For the nine months ended September 30, 2016 , revenue recognized from collaborations with Harvest start-up entities include Thrive Agrobiotics, Inc.; Exotech Bio, Inc.; Relieve Genetics, Inc.; and AD Skincare, Inc. There have been no significant changes to arrangements with our collaborators and licensees in the nine months ended September 30, 2017 . See Note 5 in the Company's Annual Report on Form 10-K for the year ended December 31, 2016 for additional details of the Company's existing collaboration and licensing agreements. Deferred Revenue Deferred revenue primarily consists of consideration received for upfront and milestone payments in connection with the Company's collaborations and licensing agreements, prepayments for research and development services performed for collaborators and licensees, and prepayments for product and service revenues. Deferred revenue consists of the following: September 30, December 31, Upfront and milestone payments $ 269,649 $ 297,867 Prepaid research and development services 1,718 6,015 Prepaid product and service revenues 4,869 5,554 Other 51 706 Total $ 276,287 $ 310,142 Current portion of deferred revenue $ 48,289 $ 53,364 Long-term portion of deferred revenue 227,998 256,778 Total $ 276,287 $ 310,142 The following table summarizes the remaining balance of deferred revenue associated with upfront and milestone payments for each significant collaboration and licensing agreement. September 30, December 31, ZIOPHARM Oncology, Inc. $ 124,282 $ 138,809 Oragenics, Inc. 6,980 7,766 Fibrocell Science, Inc. 17,212 19,026 Genopaver, LLC 1,772 1,977 Intrexon Energy Partners, LLC 16,250 18,125 Persea Bio, LLC 3,625 4,000 Ares Trading S.A. 42,387 47,178 Intrexon Energy Partners II, LLC 14,333 15,833 Intrexon T1D Partners, LLC 8,628 8,653 Harvest start-up entities (1) 18,953 20,208 Other 15,227 16,292 Total $ 269,649 $ 297,867 (1) As of September 30, 2017 and December 31, 2016 , the balance of deferred revenue for collaborations with Harvest start-up entities includes Thrive Agrobiotics, Inc.; Exotech Bio, Inc.; Relieve Genetics, Inc.; AD Skincare, Inc.; Genten Therapeutics, Inc.; and CRS Bio, Inc. |