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Stockholders' Equity - Narrative (Details)
$ in Thousands
12 Months Ended
Oct. 02, 2019
USD ($)
shares
Dec. 31, 2020
USD ($)
vote
shares
Dec. 31, 2019
USD ($)
shares
Dec. 31, 2018
USD ($)
shares
Nov. 02, 2018
shares
Accumulated Other Comprehensive Income (Loss) [Line Items]          
Share consideration given for acquisitions | $   $ 0 $ 16,195 $ 0  
Common Stock          
Accumulated Other Comprehensive Income (Loss) [Line Items]          
Common stock, votes entitled per share | vote   1      
Number of shares authorized to be repurchased (in shares)         2,000,000
Purchase of treasury stock (in shares)   0 250,000 467,000  
Plateau          
Accumulated Other Comprehensive Income (Loss) [Line Items]          
Shares issued in acquisition of business (in shares) 1,245,000        
Share consideration given for acquisitions | $ $ 16,195