XML 51 R37.htm IDEA: XBRL DOCUMENT v3.7.0.1
Fair Value Measurements (Details) - Fair Value, Measurements, Recurring - USD ($)
$ in Thousands
Jul. 31, 2017
Jan. 31, 2017
Jul. 31, 2016
Assets:      
Total assets measured at fair value $ 36,277 $ 32,530 $ 30,807
Liabilities:      
Total liabilities measured at fair value 34,496 31,042 28,561
Level 1      
Assets:      
Total assets measured at fair value 35,875 32,385 30,258
Liabilities:      
Total liabilities measured at fair value 34,007 30,831 28,469
Level 2      
Assets:      
Total assets measured at fair value 402 145 549
Liabilities:      
Total liabilities measured at fair value 489 211 92
Other Current Assets | Available-for-sale securities      
Assets:      
Total assets measured at fair value 313 309 271
Other Current Assets | Short-term investment      
Assets:      
Total assets measured at fair value 161 154 154
Other Current Assets | Hedge derivatives-Assets      
Assets:      
Total assets measured at fair value 402 145 549
Other Current Assets | Level 1 | Available-for-sale securities      
Assets:      
Total assets measured at fair value 313 309 271
Other Current Assets | Level 1 | Short-term investment      
Assets:      
Total assets measured at fair value 161 154 154
Other Current Assets | Level 2 | Hedge derivatives-Assets      
Assets:      
Total assets measured at fair value 402 145 549
Other non-current assets | SERP assets - employer      
Assets:      
Total assets measured at fair value 1,394 1,091 1,364
Other non-current assets | SERP assets - employee      
Assets:      
Total assets measured at fair value 34,007 30,831 28,469
Other non-current assets | Level 1 | SERP assets - employer      
Assets:      
Total assets measured at fair value 1,394 1,091 1,364
Other non-current assets | Level 1 | SERP assets - employee      
Assets:      
Total assets measured at fair value 34,007 30,831 28,469
Other non-current liabilities | SERP liabilities - employee      
Liabilities:      
Total liabilities measured at fair value 34,007 30,831 28,469
Other non-current liabilities | Level 1 | SERP liabilities - employee      
Liabilities:      
Total liabilities measured at fair value 34,007 30,831 28,469
Accrued Liabilities | Hedge derivatives-Liabilities      
Liabilities:      
Total liabilities measured at fair value 489 211 92
Accrued Liabilities | Level 2 | Hedge derivatives-Liabilities      
Liabilities:      
Total liabilities measured at fair value $ 489 $ 211 $ 92