Earnings Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 28, 2022	Jun. 29, 2021	Jun. 28, 2022	Jun. 29, 2021
Earnings per share
Net income attributable to Texas Roadhouse, Inc. and subsidiaries	$ 72,419	$ 75,480	$ 147,621	$ 139,630
Basic EPS:
Weighted-average common shares outstanding (in shares)	67,654,000	69,790,000	68,370,000	69,713,000
Basic EPS (in dollars per share)	$ 1.07	$ 1.08	$ 2.16	$ 2.00
Diluted EPS:
Weighted-average common shares outstanding (in shares)	67,654,000	69,790,000	68,370,000	69,713,000
Dilutive effect of nonvested stock (in shares)	236,000	371,000	261,000	437,000
Shares-diluted (in shares)	67,890,000	70,161,000	68,631,000	70,150,000
Diluted EPS (in dollars per share)	$ 1.07	$ 1.08	$ 2.15	$ 1.99
Nonvested stock
Antidilutive securities
Anti-dilutive securities (in shares)	16,638	52,620	11,895	27,186