Earnings Per Share (Tables)

6 Months Ended

Jun. 30, 2013

Earnings Per Share

Reconciliation of number of shares used in calculation of basic and diluted earning per share

	Three Months Ended June 30,		Six Months Ended June 30,
	2013	2012	2013	2012
Weighted average number of common shares outstanding	90,269	90,305	90,344	90,363
Effect of non-participatory equity compensation	36	32	36	32
Weighted average number of common shares outstanding, including effect of dilutive securities	90,305	90,337	90,380	90,395