Income (Loss) Per Share (Details) - shares shares in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Weighted Average Number of Shares Outstanding, Diluted [Abstract]
Weighted average shares outstanding - basic (in shares)	54,980	51,444	54,955	51,411
Effect of dilutive stock-based compensation (in shares)		125		152
Effect of dilutive put rights (in shares)		263		263
Net income available to common stockholders - assuming dilution (in shares)	54,980	51,832	54,955	51,826