Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 27, 2022	Sep. 28, 2021	Sep. 27, 2022	Sep. 28, 2021
Earnings per share
Net income attributable to Texas Roadhouse, Inc. and subsidiaries	$ 62,328	$ 52,606	$ 209,949	$ 192,236
Basic EPS:
Weighted-average common shares outstanding (in shares)	66,886	69,808	67,875	69,745
Basic EPS (in dollars per share)	$ 0.93	$ 0.75	$ 3.09	$ 2.76
Diluted EPS:
Weighted-average common shares outstanding (in shares)	66,886	69,808	67,875	69,745
Dilutive effect of nonvested stock (in shares)	273	338	265	403
Shares-diluted (in shares)	67,159	70,146	68,140	70,148
Diluted EPS (in dollars per share)	$ 0.93	$ 0.75	$ 3.08	$ 2.74