UNAUDITED CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY - USD ($) $ in Thousands	Total	Preferred Stock	Common Stock	Additional Paid-In Capital	Accumulated Other Comprehensive Income (Loss)	Retained Earnings	MYR Group Inc. Stockholders' Equity	Noncontrolling Interest
Balance, beginning of period at Dec. 31, 2020	$ 429,292	$ 0	$ 167	$ 158,618	$ 23	$ 270,480	$ 429,288	$ 4
Balance, beginning of period (in shares) at Dec. 31, 2020			16,734,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	19,928					19,928	19,928
Stock issued under compensation plans, net	110		$ 1	109			110
Stock issued under compensation plans, net (in shares)			123,000
Stock-based compensation expense	1,487			1,487			1,487
Shares repurchased related to tax withholding for stock-based compensation	(2,618)			(2,231)		(387)	(2,618)
Shares repurchased related to tax withholding for stock-based compensation (in shares)			(41,000)
Other comprehensive income (loss)	253				253		253
Stock issued - other	12			12			12
Stock issued - other (in shares)			1,000
Balance, end of period at Mar. 31, 2021	448,464	0	$ 168	157,995	276	290,021	448,460	4
Balance, end of period (in shares) at Mar. 31, 2021			16,817,000
Balance, beginning of period at Dec. 31, 2020	429,292	0	$ 167	158,618	23	270,480	429,288	4
Balance, beginning of period (in shares) at Dec. 31, 2020			16,734,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	64,318
Other comprehensive income (loss)	77
Balance, end of period at Sep. 30, 2021	496,180	0	$ 168	161,593	100	334,315	496,176	4
Balance, end of period (in shares) at Sep. 30, 2021			16,870,000
Balance, beginning of period at Mar. 31, 2021	448,464	0	$ 168	157,995	276	290,021	448,460	4
Balance, beginning of period (in shares) at Mar. 31, 2021			16,817,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	21,219					21,219	21,219
Stock issued under compensation plans, net	319		$ 1	318			319
Stock issued under compensation plans, net (in shares)			60,000
Stock-based compensation expense	1,948			1,948			1,948
Shares repurchased related to tax withholding for stock-based compensation	(734)		$ (1)	(637)		(96)	(734)
Shares repurchased related to tax withholding for stock-based compensation (in shares)			(10,000)
Other comprehensive income (loss)	413				413		413
Balance, end of period at Jun. 30, 2021	471,629	0	$ 168	159,624	689	311,144	471,625	4
Balance, end of period (in shares) at Jun. 30, 2021			16,867,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	23,171					23,171	23,171
Stock issued under compensation plans, net	54			54			54
Stock issued under compensation plans, net (in shares)			3,000
Stock-based compensation expense	1,915			1,915			1,915
Other comprehensive income (loss)	(589)				(589)		(589)
Balance, end of period at Sep. 30, 2021	496,180	0	$ 168	161,593	100	334,315	496,176	4
Balance, end of period (in shares) at Sep. 30, 2021			16,870,000
Balance, beginning of period at Dec. 31, 2021	519,102	0	$ 168	163,754	173	355,007	519,102	0
Balance, beginning of period (in shares) at Dec. 31, 2021			16,871,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	20,688					20,688	20,688
Stock issued under compensation plans, net	4		$ 2	2			4
Stock issued under compensation plans, net (in shares)			193,000
Stock-based compensation expense	1,624			1,624			1,624
Shares repurchased related to tax withholding for stock-based compensation	(6,791)			(6,124)		(667)	(6,791)
Shares repurchased related to tax withholding for stock-based compensation (in shares)			(69,000)
Other comprehensive income (loss)	1,651				1,651		1,651
Balance, end of period at Mar. 31, 2022	536,278	0	$ 170	159,256	1,824	375,028	536,278	0
Balance, end of period (in shares) at Mar. 31, 2022			16,995,000
Balance, beginning of period at Dec. 31, 2021	519,102	0	$ 168	163,754	173	355,007	519,102	0
Balance, beginning of period (in shares) at Dec. 31, 2021			16,871,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	$ 58,808
Settlement of stock repurchase program (in shares)	(398,152)
Shares repurchased related to tax withholding for stock-based compensation (in shares)	(68,675)
Other comprehensive income (loss)	$ (7,772)
Balance, end of period at Sep. 30, 2022	535,877	0	$ 166	159,784	(7,599)	383,526	535,877	0
Balance, end of period (in shares) at Sep. 30, 2022			16,607,000
Balance, beginning of period at Mar. 31, 2022	536,278	0	$ 170	159,256	1,824	375,028	536,278	0
Balance, beginning of period (in shares) at Mar. 31, 2022			16,995,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	19,684					19,684	19,684
Stock issued under compensation plans, net	0						0
Stock issued under compensation plans, net (in shares)			9,000
Stock-based compensation expense	2,064			2,064			2,064
Settlement of stock repurchase program	(23,467)		$ (3)	(2,629)		(20,835)	(23,467)
Settlement of stock repurchase program (in shares)			(280,000)
Other comprehensive income (loss)	(3,477)				(3,477)		(3,477)
Balance, end of period at Jun. 30, 2022	531,082	0	$ 167	158,691	(1,653)	373,877	531,082	0
Balance, end of period (in shares) at Jun. 30, 2022			16,724,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	18,436					18,436	18,436
Stock issued under compensation plans, net	26			26			26
Stock-based compensation expense	2,178			2,178			2,178
Settlement of stock repurchase program	(9,899)		$ (1)	(1,111)		(8,787)	(9,899)
Settlement of stock repurchase program (in shares)			(117,000)
Other comprehensive income (loss)	(5,946)				(5,946)		(5,946)
Balance, end of period at Sep. 30, 2022	$ 535,877	$ 0	$ 166	$ 159,784	$ (7,599)	$ 383,526	$ 535,877	$ 0
Balance, end of period (in shares) at Sep. 30, 2022			16,607,000