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Condensed Consolidated Statements of Changes in Stockholders' Equity - USD ($)
shares in Thousands, $ in Thousands
Total
Total Sterling Stockholders’ Equity
Common Stock
Additional Paid in Capital
Retained Earnings
Accumulated Other Comprehensive (Loss) Gain
Non-controlling Interests
Beginning balance (in shares) at Dec. 31, 2021     29,838        
Beginning balance at Dec. 31, 2021 $ 360,227 $ 358,767 $ 298 $ 280,274 $ 79,918 $ (1,723) $ 1,460
Increase (Decrease) in Stockholders' Equity [Roll Forward]              
Net income 19,523 19,252     19,252   271
Change in interest rate swap 1,563 1,563       1,563  
Stock-based compensation 3,521 3,521   3,521      
Issuance of stock (in shares)     688        
Issuance of stock 192 192 $ 7 185      
Shares withheld for taxes (in shares)     (263)        
Shares withheld for taxes (7,386) (7,386) $ (3) (7,383)      
Ending balance (in shares) at Mar. 31, 2022     30,263        
Ending balance at Mar. 31, 2022 $ 377,640 375,909 $ 302 276,597 99,170 $ (160) 1,731
Beginning balance (in shares) at Dec. 31, 2022 30,585   30,585        
Beginning balance at Dec. 31, 2022 $ 477,799 474,599 $ 306 287,914 186,379   3,200
Increase (Decrease) in Stockholders' Equity [Roll Forward]              
Net income 20,040 19,649     19,649   391
Change in interest rate swap 0            
Stock-based compensation 4,486 4,486   4,486      
Issuance of stock (in shares)     316        
Issuance of stock 218 218 $ 2 216      
Shares withheld for taxes (in shares)     (111)        
Shares withheld for taxes $ (4,288) (4,288)   (4,288)      
Ending balance (in shares) at Mar. 31, 2023 30,790   30,790        
Ending balance at Mar. 31, 2023 $ 498,255 $ 494,664 $ 308 $ 288,328 $ 206,028   $ 3,591