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Significant Components of Deferred Income Tax Assets and Liabilities (Detail) - USD ($) $ in Thousands | May. 31, 2015 | May. 31, 2014
--- | --- | ---
Deferred income tax assets related to: |  |
Inventories | $ 8,530 | $ 6,944
Allowance for losses | 8,575 | 6,410
Bankruptcy note liability | 117,263 |
Accrued compensation and benefits | 111,843 | 102,579
Accrued other expenses | 15,932 | 10,256
Other long-term liabilities | 21,911 | 22,146
Net operating loss and credit carryforwards | 87,595 | 71,534
Net unrealized loss on securities | 21,562 | 19,185
Total Deferred Income Tax Assets | 393,211 | 239,054
Less: valuation allowances | (68,043) | (85,719)
Net Deferred Income Tax Assets | 325,168 | 153,335
Deferred income tax (liabilities) related to: |  |
Depreciation | (56,636) | (47,639)
Pension and other postretirement benefits | (16,256) | (7,867)
Amortization of intangibles | (198,872) | (115,166)
Unremitted foreign earnings | (108,508) | (2,500)
Total Deferred Income Tax (Liabilities) | (380,272) | (173,172)
Deferred Income Tax Assets (Liabilities), Net | $ (55,104) | $ (19,837)

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- Definition Amount of deferred tax liability attributable to taxable temporary differences. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Deferred Tax Liability -URI http://asc.fasb.org/extlink&oid=6510232 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32537-109319 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 15 -Subparagraph b(2) -Article 7 + Details
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