The provision for income taxes from continuing operations differs from the federal statutory rate of 21% due to the following (in thousands) for the years ended December 31:


	2020				2019				2018
Statutory rate	22,629		21.0	%	16,397		21.0	%	14,096		21.0	%
State taxes, less federal effect	3,650		3.4	%	3,194		4.1	%	2,901		4.3	%
Federal tax credits	(1,064)		(1.0)	%	(1,621)		(2.1)	%	(742)		(1.1)	%
Excess tax benefit on stock based compensation	(1,674)		(1.6)	%	(871)		(1.1)	%	(2,224)		(3.3)	%
Uncertain tax positions	—		—	%	(260)		(0.3)	%	(3,051)		(4.5)	%
Executive compensation	1,114		1.0	%	1,132		1.4	%	1,369		2.0	%
Change in valuation allowance	(130)		(0.1)	%	88		0.1	%	(1,694)		(2.5)	%
Net operating loss (NOL) write down	—		—	%	—		—	%	1,640		2.4	%
Change in Indemnification Asset	—		—	%	—		—	%	643		1.0	%









Other	(57)		—	%	94		0.1	%	73		0.1	%

	$	24,468	22.7	%	$	18,153	23.2	%	$	13,011	19.4	%

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