Income Taxes	9 Months Ended
Feb. 28, 2017
Income Taxes [Abstract]
Income Taxes	Note K: Income Taxes The Company’s effective income tax rate was 34.2% and 36.0% for the three months ended February 28, 2017 and February 29, 2016, respectively, and 34.1% and 33.9% for the nine months ended February 28, 2017 and February 29, 2016, respectively. The effective income tax rates have been impacted by discrete items recognized in the respective periods. Effective June 1, 2016, the Company early-adopted new accounting guidance related to employee share-based payments. Under this new guidance, tax benefits or shortfalls related to employee share-based payments are recognized in income taxes, whereas they previously were recorded as additional paid-in capital on the Consolidated Balance Sheets. The discrete tax benefit impacted the three and nine months ended February 28, 2017 by approximately $0.01 per diluted share and $0.05 per diluted share, respectively. During the nine months ended February 29, 2016, the Company recognized a net tax benefit on income derived in prior tax years related to customer-facing software that the Company produced. The discrete tax benefit impacted the nine months ended February 29, 2016 by approximately $0.06 per diluted share.

Income Taxes

9 Months Ended

Feb. 28, 2017

Note K: Income Taxes

The Company’s effective income tax rate was 34.2% and 36.0% for the three months ended February 28, 2017 and February 29, 2016, respectively, and 34.1% and 33.9% for the nine months ended February 28, 2017 and February 29, 2016, respectively. The effective income tax rates have been impacted by discrete items recognized in the respective periods. Effective June 1, 2016, the Company early-adopted new accounting guidance related to employee share-based payments. Under this new guidance, tax benefits or shortfalls related to employee share-based payments are recognized in income taxes, whereas they previously were recorded as additional paid-in capital on the Consolidated Balance Sheets. The discrete tax benefit impacted the three and nine months ended February 28, 2017 by approximately $0.01 per diluted share and $0.05 per diluted share, respectively. During the nine months ended February 29, 2016, the Company recognized a net tax benefit on income derived in prior tax years related to customer-facing software that the Company produced. The discrete tax benefit impacted the nine months ended February 29, 2016 by approximately $0.06 per diluted share.