| Ratios | May 31, 2026 | May 31, 2025 | May 31, 2024 | May 31, 2023 | May 31, 2022 | May 31, 2021 | May 31, 2020 | May 31, 2019 | May 31, 2018 | May 31, 2017 | May 31, 2016 | May 31, 2015 | May 31, 2014 | May 31, 2013 | May 31, 2012 | May 31, 2011 | May 31, 2010 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Gross Margin | 65.82% | 70.51% | 71.41% | ||||||||||||||
Operating Margin | 30.59% | 30.80% | 28.99% | ||||||||||||||
Pretax Margin | 29.03% | 24.67% | 22.17% | ||||||||||||||
Effective Tax Rate | 12.62% | 12.13% | 10.85% | ||||||||||||||
Net Margin | 25.37% | 21.68% | 19.76% | ||||||||||||||
Current Ratio | 1.12x | 0.75x | 0.72x | ||||||||||||||
Debt to Equity | 5.08x | 7.03x | 14.26x | ||||||||||||||
Net Debt to Equity | 4.35x | 6.51x | 13.13x | ||||||||||||||
Asset Turnover | 25.73% | 34.09% | 37.57% | ||||||||||||||
Return on Equity | 39.69% | 59.34% | 113.29% | ||||||||||||||
Return on Assets | 6.53% | 7.39% | 7.42% |