RECONCILIATION OF INCOME BEFORE INCOME TAXES TO NON-GAAP INCOME BEFORE INCOME TAXES
(Unaudited, in thousands)

		Three Months Ended June 30,								Six Months Ended June 30,
		2021				2020				2021				2020
Total income before income taxes		$	63,659			$	33,155			$	112,332			$	62,427
Adjustments to reconcile income before income taxes to non-GAAP income before income taxes:
Stock-based compensation expense			32,126				21,044				60,710				39,606
Deferred compensation plan expense			290				460				233				554
Non-GAAP income before income taxes		$	96,075			$	54,659			$	173,275			$	102,587