Condensed Consolidated Statements of Stockholders' Equity (Parenthetical) - shares	3 Months Ended
	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019
Statement of Stockholders' Equity [Abstract]
Warrants exercised (shares)	0	5	0	0	0	0
Purchase of treasury stock (shares)	958	1,098	26,675	411	3,877	11,076
Issuance of restricted stock (shares)	3,953	49,665	105,108	26,684	19,162	61,263