QUARTERLY SUPPLEMENTAL FINANCIAL DATA (UNAUDITED) (Tables)

12 Months Ended

Dec. 31, 2018

Quarterly Financial Information Disclosure [Abstract]

Quarterly Supplemental Financial Data (Unaudited)

Presented below is a summary of the unaudited quarterly financial information for the year ended December 31, 2018 (in thousands, except per share data):

	Three Months Ended
	March 31, 2018		June 30, 2018		September 30, 2018		December 31, 2018		Total
Revenue	$	43,572	$	56,149	$	77,550	$	70,143	$	247,414
Net income	$	5,959	$	10,814	$	22,818	$	19,249	$	58,840
Net income per common share:
Basic	$	0.13	$	0.23	$	0.48	$	0.40	$	1.24
Diluted	$	0.13	$	0.23	$	0.48	$	0.40	$	1.24

Presented below is a summary of the unaudited quarterly financial information for the year ended December 31, 2017 (in thousands, except per share data):

	Three Months Ended
	March 31, 2017		June 30, 2017 (1)		September 30, 2017		December 31, 2017 (1) (2)		Total
Revenue	$	55,566	$	102,513	$	61,683	$	115,867	$	335,629
Net income	$	10,365	$	47,187	$	13,520	$	32,813	$	103,885
Net income per common share:
Basic	$	0.22	$	0.99	$	0.28	$	0.70	$	2.19
Diluted	$	0.22	$	0.99	$	0.28	$	0.69	$	2.18

(1) Prior to the adoption of ASC 606 on January 1, 2018, the Company recorded as revenue the receipt of the semi-annual license fee payment of $45.0 million from SDC in the second and fourth quarters.

(2) The enactment of the Tax Cuts and Jobs Act in December 2017 resulted in a one-time charge of $11.5 million in the fourth quarter.