20.	QUARTERLY SUPPLEMENTAL FINANCIAL DATA (UNAUDITED):

The following tables present certain unaudited consolidated quarterly financial information for each of the eight quarters in the two-year period ended December 31, 2017. In the opinion of Company management, this quarterly information has been prepared on the same basis as the consolidated financial statements and includes all adjustments (consisting of only normal recurring adjustments) necessary to present fairly the information for the periods presented. The results of operations for any quarter are not necessarily indicative of the results for the full year or for any future period.

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)	The Company receives significant license revenue in the second and fourth quarters; see Note 2 for further details.

(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; see Note 18 for further details.

Presented below is a summary of the unaudited quarterly financial information for the year ended December 31, 2016 (in thousands, except per share data):

	Three Months Ended
	March 31, 2016		June 30, 2016 (1)		September 30, 2016			December 31, 2016 (1)		Total
Revenue	$	29,703	$	64,392	$	30,214		$	74,577	$	198,886
Net income (loss)	$	1,949	$	21,802	$	(1,500	)	$	25,819	$	48,070

Basic	$	0.04	$	0.46	$	(0.03	)	$	0.55	$	1.02
Diluted	$	0.04	$	0.46	$	(0.03	)	$	0.55	$	1.02

(1)	The Company receives significant license revenue in the second and fourth quarters; see Note 2 for further details.

Per share amounts for each quarter have been calculated separately. Accordingly, quarterly amounts may not add to annual amounts.