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

3 Months Ended

Mar. 31, 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 March 31,
(in thousands)	2012	2011
Basic shares outstanding	108,155	108,356
Effect of restricted stock units	606	646
Diluted shares outstanding	108,761	109,002