Income Per Share (Tables)

6 Months Ended

Jun. 30, 2014

Schedule of Weighted Average Number of Shares Outstanding Used to Compute Income Per Share

The weighted average numbers of shares outstanding used to compute income per share were as follows (in thousands):



	Three months ended June 30,		Six months ended June 30,
	2014	2013	2014	2013
Shares used to calculate basic income per share	31,226	31,058	31,203	31,003
Dilutive effect of outstanding options, performance stock units and restricted stock units	372	372	383	357
Shares used to calculate diluted income per share	31,598	31,430	31,586	31,360

Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share

The weighted average numbers of shares outstanding listed in the table below were anti-dilutive and excluded from the computation of diluted income per share, primarily because the average market price did not exceed the exercise price. These shares may be dilutive potential common shares in the future (in thousands):



	Three months ended June 30,		Six months ended June 30,
	2014	2013	2014	2013
Stock options	271	307	282	306
Performance stock units	151	75	84	88