INTANGIBLE ASSETS

6 Months Ended

Jun. 30, 2018

Goodwill And Intangible Assets Disclosure [Abstract]

INTANGIBLE ASSETS

(7) INTANGIBLE ASSETS

Intangible assets consisted of the following:

	June 30,			December 31,
	2018			2017
Intangible assets:
Finite-lived intangible assets	$	303,298		$	303,298
Indefinite-lived intangible assets		326,359			326,359
Gross intangible assets:		629,657			629,657
Less: Accumulated amortization		(127,362	)		(112,147	)
Net carrying value	$	502,295		$	517,510

Indefinite-Lived Intangible Assets

Intangible assets related to in-process research and development (IPR&D) assets are considered to be indefinite-lived until the completion or abandonment of the associated research and development (R&D) efforts. During the second quarter of 2018, no amounts have been reclassified to definite-lived and no impairment charges were recorded.

During the second quarter of 2018, the Company received $20.0 million in milestone payments due to the achievement by a third party of regulatory milestones related to a previously sold intangible asset, which the Company recorded as a gain on the sale in the Condensed Consolidated Statements of Comprehensive Income (Loss).