Condensed Consolidated Statements of Equity (Parenthetical) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Statement of Stockholders' Equity [Abstract]
Stock awards, stock option exercises and other shares issued to employees and directors, tax	$ 0	$ 0	$ 0	$ 0
Number Of Common Shares Issued For Cash	11	20	67	167
Dividends declared, per common share (in dollars per share)	$ 0.175	$ 0.175	$ 0.350	$ 0.350