Other Long-Term Liabilities

12 Months Ended

Dec. 31, 2019

Other Long-Term Liabilities

Other Long-Term Liabilities

(10) Other Long‑Term Liabilities

Other long‑term liabilities include the following:

	December 31,		December 31,
	2019		2018
	(In thousands)
Net Deferred Tax Liabilities Related to IPR&D (Note 15)	$	3,007	$	3,007
Deferred Income From Sale of Tax Benefits		1,831		4,218
Other		—		1,083
Contingent Milestones (Note 4)		12,485		13,779
Deferred Revenue		254		1,586
Total		17,577		23,673
Less Current Portion		(2,026)		(4,526)
Long-Term Portion	$	15,551	$	19,147

In November 2015, the Company received approval from the New Jersey Economic Development Authority and agreed to sell New Jersey tax benefits of $9.8 million to an independent third party for $9.2 million. Under the agreement, the Company must maintain a base of operations in New Jersey for five years or the tax benefits must be paid back on a pro‑rata basis based on the number of years completed. During the years ended December 31, 2019, 2018 and 2017, the Company recorded $2.4 million, $2.5 million and $2.7 million to other income related to the sale of these tax benefits, respectively.