INTANGIBLE ASSETS (Tables)

12 Months Ended

Dec. 31, 2021

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of intangible assets

The following table reflects the gross carrying amounts and net book values of intangible assets as of December 31, 2021 and 2020 (dollar amounts in thousands):

	December 31, 2021							December 31, 2020
Product rights	Remaining Useful Life (In years)	Gross Carrying Amount		Accumulated Amortization		Net Book Value		Gross Carrying Amount		Accumulated Amortization		Net Book Value
INDOCIN	10.4	$	154,100	$	(20,654)	$	133,446	$	154,100	$	(7,812)	$	146,288
Otrexup	8.0	44,086		—		44,086		—		—		—
SPRIX	5.4	39,000		(8,960)		30,040		39,000		(3,389)		35,611
CAMBIA	1.0	51,360		(43,410)		7,950		51,360		(36,163)		15,197
Zipsor	0.2	27,250		(26,718)		532		27,250		(24,381)		2,869
Oxaydo	0.0	300		(300)		—		300		(183)		117
Total Intangible Assets		$	316,096	$	(100,042)	$	216,054	$	272,010	$	(71,928)	$	200,082

Summary of the future amortization expenses of intangible assets

The following table reflects future amortization expense the Company expects for its intangible assets (in thousands):

Year Ending December 31,	Estimated Amortization Expense
2022	$	32,406
2023	23,924
2024	23,924
2025	23,924
Thereafter	111,876
Total	$	216,054