| Ratios | Mar 31, 2026 | Dec 31, 2025 | Sep 30, 2025 | Mar 31, 2025 | Dec 31, 2024 | Sep 30, 2024 | Mar 31, 2024 | Dec 31, 2023 | Sep 30, 2023 | Mar 31, 2023 | Dec 31, 2022 | Sep 30, 2022 | Mar 31, 2022 | Dec 31, 2021 | Sep 30, 2021 | Mar 31, 2021 | Dec 31, 2020 | Sep 30, 2020 | Mar 31, 2020 | Dec 31, 2019 | Sep 30, 2019 | Mar 31, 2019 | Dec 31, 2018 | Sep 30, 2018 | Mar 31, 2018 | Dec 31, 2017 | Sep 30, 2017 | Mar 31, 2017 | Dec 31, 2016 | Sep 30, 2016 | Mar 31, 2016 | Dec 31, 2015 | Sep 30, 2015 | Mar 31, 2015 | Dec 31, 2014 | Sep 30, 2014 | Mar 31, 2014 | Dec 31, 2013 | Sep 30, 2013 | Mar 31, 2013 | Dec 31, 2012 | Sep 30, 2012 | Mar 31, 2012 | Sep 30, 2011 | Mar 31, 2011 | Dec 31, 2010 | Sep 30, 2010 | Mar 31, 2010 | Dec 31, 2009 | Sep 30, 2009 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Gross Margin | 67.63% | 68.04% | 69.05% | 68.72% | 68.69% | 69.35% | 70.08% | 68.36% | 71.16% | 69.49% | 66.85% | 69.17% | ||||||||||||||||||||||||||||||||||||||
Operating Margin | 46.33% | 47.09% | 48.87% | 45.67% | 45.46% | 46.58% | 44.59% | 43.59% | 47.59% | 42.29% | 38.67% | 42.93% | ||||||||||||||||||||||||||||||||||||||
Pretax Margin | 47.46% | 59.36% | 44.16% | 44.78% | 42.17% | 46.15% | 43.21% | 42.77% | 48.28% | 42.89% | 38.56% | 43.04% | ||||||||||||||||||||||||||||||||||||||
Effective Tax Rate | 19.22% | 20.29% | 19.11% | 17.70% | 17.90% | 18.51% | 17.91% | 17.55% | 18.30% | 19.29% | 19.24% | 18.62% | ||||||||||||||||||||||||||||||||||||||
Net Margin | 38.34% | 47.32% | 35.72% | 36.86% | 34.62% | 37.61% | 35.47% | 35.26% | 39.44% | 34.62% | 31.14% | 35.03% | ||||||||||||||||||||||||||||||||||||||
Current Ratio | 1.28x | 1.39x | 1.40x | 1.37x | 1.35x | 1.30x | 1.24x | 1.22x | 1.66x | 1.91x | 1.93x | 1.84x | ||||||||||||||||||||||||||||||||||||||
Debt to Equity | 0.68x | 0.70x | 0.75x | 0.75x | 0.76x | 0.82x | 0.91x | 0.97x | 1.02x | 0.95x | 0.99x | 1.07x | ||||||||||||||||||||||||||||||||||||||
Net Debt to Equity | 0.60x | 0.64x | 0.67x | 0.66x | 0.71x | 0.75x | 0.84x | 0.90x | 0.66x | 0.82x | 0.91x | 0.94x | ||||||||||||||||||||||||||||||||||||||
Asset Turnover | 11.94% | 12.22% | 12.21% | 12.45% | 13.04% | 12.54% | 12.77% | 13.18% | 12.68% | 13.91% | 14.47% | 13.93% | ||||||||||||||||||||||||||||||||||||||
Return on Equity | 7.67% | 9.84% | 7.64% | 8.02% | 7.96% | 8.57% | 8.67% | 9.18% | 10.10% | 9.40% | 8.97% | 10.11% | ||||||||||||||||||||||||||||||||||||||
Return on Assets | 4.58% | 5.78% | 4.36% | 4.59% | 4.52% | 4.72% | 4.53% | 4.65% | 5.00% | 4.81% | 4.51% | 4.88% |