Annual report pursuant to Section 13 and 15(d)

Acquisitions - Narrative Sturgeon Acquisitions (Details)

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Acquisitions - Narrative Sturgeon Acquisitions (Details) - USD ($)
Jun. 05, 2017
May 26, 2017
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Business Acquisition [Line Items]          
Common stock, par or stated value per share (in dollars per share)     $ 0.01 $ 0.01  
Total consideration transferred $ 25,762,000 $ 36,320,000      
Sturgeon Acquisitions LLC          
Business Acquisition [Line Items]          
Shares issued (in shares) $ 5,607,452        
Common stock, par or stated value per share (in dollars per share) $ 0.01        
Price per share (in usd per share) $ 18.50        
Total consideration transferred $ 103,700,000        
Transaction related costs expensed         $ 1,300,000