Earnings Per Share - Summary of Weighted Average Number of Common Shares Used to Compute Basic and Dilute Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Numerator:
Net income	$ 90,990	$ 83,381	$ 85,006
Less: net loss attributable to noncontrolling interest	0	0	(4)
Net income attributable to MYR Group	$ 90,990	$ 83,381	$ 85,010
Denominator:
Weighted average common shares outstanding (in shares)	16,682	16,760	16,838
Weighted average dilutive securities (in shares)	155	220	323
Weighted average common shares outstanding, diluted (in shares)	16,837	16,980	17,161
Basic (in dollars per share)	$ 5.45	$ 4.98	$ 5.05
Diluted (in dollars per share)	$ 5.40	$ 4.91	$ 4.95