Income (Loss) Per Share (Details) - shares	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Weighted Average Shares Outstanding Details [Table]
Number of weighted average common shares outstanding	79,169,000	78,600,000	77,954,000
Assumed exercise of stock options	0	0	886,000
Average diluted shares outstanding	79,169,000	78,600,000	78,840,000
Antidilutive stock options excluded from average diluted shares outstanding			2,061,534