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Component: (Network and Table)
Network
2411402 - Disclosure - Other Noncurrent Liabilities (Details)
(http://www.nesl.com/role/OtherNoncurrentLiabilitiesDetails)
Table(Implied)
Slicers (applies to each fact value in each table cell)
Reporting Entity [Axis]0001527032 (http://www.sec.gov/CIK)
Other Liabilities Disclosure [Abstract]Period [Axis]
2016-02-29
2015-02-28
Other Liabilities Disclosure [Abstract]
 
 
Reclamation costs (see footnote 13. Asset Retirement Obligations)
19,116,000  
18,835,000  
Executive deferred compensation liability (see footnote 12. Retirement and Benefit Programs)
4,989,000  
5,512,000  
PIK accrued interest (see footnote 9. Long-Term Debt)
9,497,000  
10,394,000  
Other
13,142,000  
11,533,000  
Total other noncurrent liabilities
46,744,000  
 
46,274,000