Fair Value Measurements - Assets and Liabilities Measured at Fair Value on Recurring Basis (Details) - Fair Value, Measurements, Recurring - USD ($) $ in Thousands	Jan. 31, 2025	Jan. 31, 2024
Assets:
Total assets measured at fair value	$ 88,822	$ 83,996
Liabilities:
Total liabilities measured at fair value	54,553	48,811
Level 1
Assets:
Total assets measured at fair value	54,496	49,711
Liabilities:
Total liabilities measured at fair value	53,442	48,800
Level 2
Assets:
Total assets measured at fair value	13	554
Liabilities:
Total liabilities measured at fair value	1,111	11
Level 3
Assets:
Total assets measured at fair value	34,313	33,731
Liabilities:
Total liabilities measured at fair value	0	0
Other Current Assets | Available-for-sale securities
Assets:
Total assets measured at fair value	306	246
Other Current Assets | Short-term investment
Assets:
Total assets measured at fair value	143	155
Other Current Assets | Hedge derivatives-Assets
Assets:
Total assets measured at fair value	13	554
Other Current Assets | Level 1 | Available-for-sale securities
Assets:
Total assets measured at fair value	306	246
Other Current Assets | Level 1 | Short-term investment
Assets:
Total assets measured at fair value	143	155
Other Current Assets | Level 1 | Hedge derivatives-Assets
Assets:
Total assets measured at fair value	0	0
Other Current Assets | Level 2 | Available-for-sale securities
Assets:
Total assets measured at fair value	0	0
Other Current Assets | Level 2 | Short-term investment
Assets:
Total assets measured at fair value	0	0
Other Current Assets | Level 2 | Hedge derivatives-Assets
Assets:
Total assets measured at fair value	13	554
Other Current Assets | Level 3 | Available-for-sale securities
Assets:
Total assets measured at fair value	0	0
Other Current Assets | Level 3 | Short-term investment
Assets:
Total assets measured at fair value	0	0
Other Current Assets | Level 3 | Hedge derivatives-Assets
Assets:
Total assets measured at fair value	0	0
Other Non-current Assets | SERP assets - employer
Assets:
Total assets measured at fair value	605	510
Other Non-current Assets | SERP assets - employee
Assets:
Total assets measured at fair value	53,442	48,800
Other Non-current Assets | Level 1 | SERP assets - employer
Assets:
Total assets measured at fair value	605	510
Other Non-current Assets | Level 1 | SERP assets - employee
Assets:
Total assets measured at fair value	53,442	48,800
Other Non-current Assets | Level 2 | SERP assets - employer
Assets:
Total assets measured at fair value	0	0
Other Non-current Assets | Level 2 | SERP assets - employee
Assets:
Total assets measured at fair value	0	0
Other Non-current Assets | Level 3 | SERP assets - employer
Assets:
Total assets measured at fair value	0	0
Other Non-current Assets | Level 3 | SERP assets - employee
Assets:
Total assets measured at fair value	0	0
Other non-current liabilities | SERP liabilities - employee
Liabilities:
Total liabilities measured at fair value	53,442	48,800
Other non-current liabilities | Defined Benefit Plan Assets
Assets:
Total assets measured at fair value	34,313	33,731
Other non-current liabilities | Level 1 | SERP liabilities - employee
Liabilities:
Total liabilities measured at fair value	53,442	48,800
Other non-current liabilities | Level 1 | Defined Benefit Plan Assets
Assets:
Total assets measured at fair value	0	0
Other non-current liabilities | Level 2 | SERP liabilities - employee
Liabilities:
Total liabilities measured at fair value	0	0
Other non-current liabilities | Level 2 | Defined Benefit Plan Assets
Assets:
Total assets measured at fair value	0	0
Other non-current liabilities | Level 3 | SERP liabilities - employee
Liabilities:
Total liabilities measured at fair value	0	0
Other non-current liabilities | Level 3 | Defined Benefit Plan Assets
Assets:
Total assets measured at fair value	34,313	33,731
Accrued Liabilities | Hedge derivatives-Liabilities
Liabilities:
Total liabilities measured at fair value	1,111	11
Accrued Liabilities | Level 1 | Hedge derivatives-Liabilities
Liabilities:
Total liabilities measured at fair value	0	0
Accrued Liabilities | Level 2 | Hedge derivatives-Liabilities
Liabilities:
Total liabilities measured at fair value	1,111	11
Accrued Liabilities | Level 3 | Hedge derivatives-Liabilities
Liabilities:
Total liabilities measured at fair value	$ 0	$ 0