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Consolidated Statements of Shareholders' Equity - USD ($)
$ in Thousands
Total
Common Stock
Retained Earnings
Stock in rabbi trust assumed in acquisition
Rabbi trust obligation
Accumulated Other Comprehensive Income (Loss)
Beginning balance (in shares) at Dec. 31, 2016   20,845,000        
Beginning balance at Dec. 31, 2016 $ 368,101 $ 147,287 $ 225,921 $ 0 $ 0 $ (5,107)
Net income 45,972   45,972      
Cash dividends declared (8,298)   (8,298)      
Equity issued related to acquisitions (in shares)   8,733,000        
Equity issued related to acquisitions 284,192 $ 284,192   (7,688) 7,688  
Change in Rabbi Trust Obligation $ 0     4,107 (4,107)  
Stock option exercises (in shares) 21,259 18,000        
Stock option exercises $ 287 $ 287        
Stock withheld for payment of taxes (in shares)   (7,000)        
Stock withheld for payment of taxes (231) $ (231)        
Stock-based compensation (in shares)   50,000        
Stock-based compensation 1,259 $ 1,259        
Reclassification of accumulated other comprehensive income due to statutory tax changes     736     (736)
Other comprehensive income (loss) 1,697         1,697
Ending balance (in shares) at Dec. 31, 2017   29,639,000        
Ending balance at Dec. 31, 2017 692,979 $ 432,794 264,331 (3,581) 3,581 (4,146)
Net income 89,289   89,289      
Cash dividends declared (11,882)   (11,882)      
Change in Rabbi Trust Obligation $ 0     346 (346)  
Stock option exercises (in shares) 29,689 25,000        
Stock option exercises $ 324 $ 324        
Stock withheld for payment of taxes (in shares)   (11,000)        
Stock withheld for payment of taxes (406) $ (406)        
Stock-based compensation (in shares)   72,000        
Stock-based compensation 1,741 $ 1,741        
Other comprehensive income (loss) $ (7,815)         (7,815)
Ending balance (in shares) at Dec. 31, 2018 29,724,874 29,725,000        
Ending balance at Dec. 31, 2018 $ 764,230 $ 434,453 341,738 (3,235) 3,235 (11,961)
Net income 92,046   92,046      
Cash dividends declared (16,020)   (16,020)      
Equity issued related to acquisitions (in shares)   78,000        
Equity issued related to acquisitions 3,070 $ 3,070        
Change in Rabbi Trust Obligation 0     648 (648)  
Stock repurchases (in shares)   (282,000)        
Stock repurchases $ (10,000) $ (10,000)        
Stock option exercises (in shares) 9,000 9,000        
Stock option exercises $ 129 $ 129        
Stock withheld for payment of taxes (in shares)   (20,000)        
Stock withheld for payment of taxes (702) $ (702)        
Stock-based compensation (in shares)   91,000        
Stock-based compensation 2,564 $ 2,564        
Other comprehensive income (loss) $ 17,084         17,084
Ending balance (in shares) at Dec. 31, 2019 29,601,264 29,601,000        
Ending balance at Dec. 31, 2019 $ 852,401 $ 429,514 $ 417,764 $ (2,587) $ 2,587 $ 5,123