Consolidated Balance Sheets (Parenthetical) - $ / shares	Dec. 31, 2019	Dec. 31, 2018
Preferred Stock Undefined
Preferred stock, par value
Preferred stock authorized (in shares)	1,000,000	1,000,000
Preferred stock issued (in shares)	0	0
Preferred stock outstanding (in shares)	0	0
Class A Common Stock
Common stock, par value
Common stock authorized (in shares)	100,000,000	100,000,000
Common stock issued (in shares)	37,401,443	35,512,262
Common stock outstanding (in shares)	37,401,443	35,512,262
Class B Common Stock
Common stock, par value
Common stock authorized (in shares)	10,000,000	10,000,000
Common stock issued (in shares)	2,915,531	4,643,530
Common stock outstanding (in shares)	2,915,531	4,643,530