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Earnings Per Share (Tables)
12 Months Ended
Dec. 31, 2021
Earnings Per Share [Abstract]  
Schedule of Earnings Per Share, Basic and Diluted The following table reconciles the numerators and denominators of the basic and diluted earnings per share computations for net income attributable to Sterling common stockholders:
Years Ended December 31,
202120202019
Numerator:
Net income attributable to Sterling common stockholders$62,645 $42,306 $39,901 
Denominator:
Weighted average common shares outstanding — basic28,600 27,859 26,671 
Shares for dilutive unvested stock and warrants501 336 448 
Weighted average common shares outstanding — diluted29,101 28,195 27,119 
Basic net income per share attributable to Sterling common stockholders$2.19 $1.52 $1.50 
Diluted net income per share attributable to Sterling common stockholders$2.15 $1.50 $1.47