Fair Value Measurements - Assets and Liabilities Measured at Fair Value on Recurring Basis (Details) - Fair Value, Measurements, Recurring - USD ($) $ in Thousands	Jan. 31, 2022	Jan. 31, 2021
Assets:
Total assets measured at fair value	$ 77,739	$ 73,461
Liabilities:
Total liabilities measured at fair value	47,431	46,686
Level 1
Assets:
Total assets measured at fair value	48,446	47,624
Liabilities:
Total liabilities measured at fair value	47,261	46,673
Level 2
Assets:
Total assets measured at fair value	197	0
Liabilities:
Total liabilities measured at fair value	170	13
Level 3
Assets:
Total assets measured at fair value	29,096	25,837
Liabilities:
Total liabilities measured at fair value	0	0
Other Current Assets | Available-for-sale securities
Assets:
Total assets measured at fair value	249	184
Other Current Assets | Short-term investment
Assets:
Total assets measured at fair value	164	162
Other Current Assets | Hedge derivatives-Assets
Assets:
Total assets measured at fair value	197
Other Current Assets | Level 1 | Available-for-sale securities
Assets:
Total assets measured at fair value	249	184
Other Current Assets | Level 1 | Short-term investment
Assets:
Total assets measured at fair value	164	162
Other Current Assets | Level 1 | Hedge derivatives-Assets
Assets:
Total assets measured at fair value	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	197
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
Other Non-current Assets | SERP assets - employer
Assets:
Total assets measured at fair value	772	605
Other Non-current Assets | SERP assets - employee
Assets:
Total assets measured at fair value	47,261	46,673
Other Non-current Assets | Level 1 | SERP assets - employer
Assets:
Total assets measured at fair value	772	605
Other Non-current Assets | Level 1 | SERP assets - employee
Assets:
Total assets measured at fair value	47,261	46,673
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	47,261	46,673
Other non-current liabilities | Defined Benefit Plan Assets
Assets:
Total assets measured at fair value	29,096	25,837
Other non-current liabilities | Level 1 | SERP liabilities - employee
Liabilities:
Total liabilities measured at fair value	47,261	46,673
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	29,096	25,837
Accrued Liabilities | Hedge derivatives-Liabilities
Liabilities:
Total liabilities measured at fair value	170	13
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	170	13
Accrued Liabilities | Level 3 | Hedge derivatives-Liabilities
Liabilities:
Total liabilities measured at fair value	$ 0	$ 0