Capital Stock, Weighted Average Shares Outstanding (Details) - shares shares in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Weighted Average Shares Outstanding [Abstract]
Basic weighted-average common shares outstanding (in shares)	55,518	55,170	52,806
Effect of Dilutive Securities [Abstract]
Stock awards and options (in shares)	409	1,061	1,110
Convertible note (in shares)	0	245	936
Diluted weighted-average common shares outstanding (in shares)	55,927	56,476	54,852
Stock Options [Member]
Weighted Average Shares Outstanding [Abstract]
Anti-dilutive shares excluded from calculation of diluted earnings per share (in shares)	1,400	900	400