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UNAUDITED CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY - USD ($)
shares in Thousands, $ in Thousands
Total
Cumulative Effect Adjustment
Preferred Stock
Common Stock
Additional Paid-In Capital
Accumulated Other Comprehensive Income (Loss)
Retained Earnings
Retained Earnings
Cumulative Effect Adjustment
MYR Group Inc. Stockholders' Equity
MYR Group Inc. Stockholders' Equity
Cumulative Effect Adjustment
Noncontrolling Interest
Increase (Decrease) in Stockholders' Equity [Roll Forward]                      
Adjustment to adopt ASC 326 $ 364,475 $ (268) $ 0 $ 166 $ 152,532 $ (446) $ 212,219 $ (268) $ 364,471 $ (268) $ 4
Balance, beginning of period at Dec. 31, 2019 364,475 (268) 0 $ 166 152,532 (446) 212,219 (268) 364,471 (268) 4
Balance, beginning of period (in shares) at Dec. 31, 2019       16,649              
Increase (Decrease) in Stockholders' Equity [Roll Forward]                      
Net income $ 9,932           9,932   9,932    
Accounting Standards Update [Extensible List] us-gaap:AccountingStandardsUpdate201613Member                    
Adjustment to adopt ASC 326 $ 374,986 $ (268) 0 $ 166 153,477 (359) 221,698 $ (268) 374,982 $ (268) 4
Stock issued under compensation plans, net 82       82       82    
Stock issued under compensation plans, net (in shares)       55              
Stock-based compensation expense 1,080       1,080       1,080    
Shares repurchased (426)       (241)   (185)   (426)    
Shares repurchased (in shares)       (20)              
Other comprehensive income 87         87     87    
Stock issued - other 24       24       24    
Stock issued - other (in shares)       1              
Balance, end of period at Mar. 31, 2020 374,986   0 $ 166 153,477 (359) 221,698   374,982   4
Balance, end of period (in shares) at Mar. 31, 2020       16,685              
Increase (Decrease) in Stockholders' Equity [Roll Forward]                      
Adjustment to adopt ASC 326 374,986   0 $ 166 153,477 (359) 221,698   374,982   4
Adjustment to adopt ASC 326 429,292   0 167 158,618 23 270,480   429,288   4
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              
Increase (Decrease) in Stockholders' Equity [Roll Forward]                      
Net income 19,928           19,928   19,928    
Adjustment to adopt ASC 326 448,464   0 $ 168 157,995 276 290,021   448,460   4
Stock issued under compensation plans, net 110     $ 1 109       110    
Stock issued under compensation plans, net (in shares)       123              
Stock-based compensation expense 1,487       1,487       1,487    
Shares repurchased (2,618)       (2,231)   (387)   (2,618)    
Shares repurchased (in shares)       (41)              
Other comprehensive income 253         253     253    
Stock issued - other 12       12       12    
Stock issued - other (in shares)       1              
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              
Increase (Decrease) in Stockholders' Equity [Roll Forward]                      
Adjustment to adopt ASC 326 $ 448,464   $ 0 $ 168 $ 157,995 $ 276 $ 290,021   $ 448,460   $ 4