Change in Accounting Estimate for Self-Insured Claims (Tables)

9 Months Ended

Sep. 26, 2020

Effect of Increase in Cost of Insurance and Claims

The following table summarizes the effect of the increase in the cost of insurance claims resulting from unfavorable development of prior year self-insured claims estimates on operating income, net income attributable to Landstar System, Inc. and subsidiary and earnings per share attributable to Landstar System, Inc. and subsidiary set forth in the consolidated statements of income for the thirty-nine-week and thirteen-week periods ended September 26, 2020 and September 28, 2019 (in thousands, except per share amounts):

	Thirty Nine Weeks Ended				Thirteen Weeks Ended
	September 26, 2020		September 28, 2019		September 26, 2020		September 28, 2019
Operating income	$	6,162	$	9,497	$	1,123	$	6,597
Net income attributable to Landstar System, Inc. and subsidiary	$	4,671	$	7,199	$	851	$	5,001
Earnings per share attributable to Landstar System, Inc. and subsidiary	$	0.12	$	0.18	$	0.02	$	0.13
Diluted earnings per share attributable to Landstar System, Inc. and subsidiary	$	0.12	$	0.18	$	0.02	$	0.13