Earnings Per Share (Details)	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Reconciliation of number of shares used in calculation of basic and diluted earning per share
Weighted average number of common shares outstanding	90,300,000	90,200,000	90,400,000	90,300,000
Effect of non-participatory equity compensation (in shares)	36,000	36,000	36,000	36,000
Weighted average number of common shares outstanding, including effect of dilutive securities	90,300,000	90,200,000	90,400,000	90,300,000