Earnings Per Share, Stock-Based Compensation and Share Repurchase Plan (Tables)

9 Months Ended

Sep. 30, 2012

Shareholders' Equity, Earnings Per Share And Stock-Based Compensation [Abstract]

Schedule of Earnings Per Share

Earnings Per Share. The table that follows presents our computation of weighted average basic and diluted shares outstanding, which we use in our earnings per share calculations. For each period presented, our net income allocable to both common shareholders and diluted common shareholders is the same as our net income in our consolidated statements of income.

	Three Months Ended Sep 30,		Nine Months Ended Sep 30,
(in thousands)	2012	2011	2012	2011
Basic shares outstanding	107,905	108,310	108,052	108,400
Effect of restricted stock units	595	618	585	714
Diluted shares outstanding	108,500	108,928	108,637	109,114