Net Income Per Share (Tables)

3 Months Ended

Mar. 31, 2013

Earnings Per Share [Abstract]

Reconciliation Between Basic And Diluted Weighted Average Shares Outstanding

	Three Months Ended March 31,
	2013	2012
Basic weighted average shares outstanding	71,290,000	69,871,000
Effect of dilution:
Stock options	323,000	899,000
Restricted shares/units	934,000	1,360,000
Diluted weighted average shares outstanding	72,547,000	72,130,000