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Accumulated Other Comprehensive Income (loss) (Detail) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
May. 31, 2015 | May. 31, 2014 | May. 31, 2013
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |
Beginning Balance | $ (156,882) | $ (159,253) | $ (177,893)
Reclassification adjustments for gains included in net income, net of tax benefit of $2,307, $586, $633 in 2015, 2014 and 2013 | (4,334) | (1,220) | (1,953)
Increase in equity ownership - SPHC | (145,143) |  |
Other comprehensive income (loss) | (231,797) | (1,385) | 40,063
Deferred taxes | 8,479 | 4,976 | (19,470)
Ending Balance | (394,135) | (156,882) | (159,253)
Accumulated Other Comprehensive Income/(Loss) |  |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |
Increase in equity ownership - SPHC | (9,601) |  |
Foreign Currency Translation Adjustments |  |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |
Beginning Balance | (14,895) | (24,428) | (8,517)
Other comprehensive income (loss) | (216,755) | 9,533 | (15,911)
Ending Balance | (231,650) | (14,895) | (24,428)
Pension And Other Postretirement Benefit Liability Adjustments, Net of Tax |  |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |
Beginning Balance | (153,648) | (143,555) | (174,174)
Other comprehensive income (loss) | (10,817) | (16,418) | 48,100
Deferred taxes | 5,734 | 6,325 | (17,481)
Ending Balance | (168,332) | (153,648) | (143,555)
Pension And Other Postretirement Benefit Liability Adjustments, Net of Tax | Accumulated Other Comprehensive Income/(Loss) |  |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |
Increase in equity ownership - SPHC | (9,601) |  |
Unrealized Gain (Loss) On Derivatives, Net of Tax |  |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |
Beginning Balance | 285 | 1,196 | 1,200
Reclassification adjustments for gains included in net income, net of tax benefit of $2,307, $586, $633 in 2015, 2014 and 2013 | (125) |  |
Other comprehensive income (loss) | (341) | (1,215) | 14
Deferred taxes | 181 | 304 | (18)
Ending Balance |  | 285 | 1,196
Unrealized Gain (Loss) On Securities, Net of Tax |  |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |
Beginning Balance | 11,376 | 7,534 | 3,598
Reclassification adjustments for gains included in net income, net of tax benefit of $2,307, $586, $633 in 2015, 2014 and 2013 | (4,209) | (1,220) | (1,953)
Other comprehensive income (loss) | (3,884) | 6,715 | 7,860
Deferred taxes | 2,564 | (1,653) | (1,971)
Ending Balance | $ 5,847 | $ 11,376 | $ 7,534

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- Definition Accumulated change in equity from transactions and other events and circumstances from non-owner sources, net of tax effect, at period end. Excludes Net Income (Loss), and accumulated changes in equity from transactions resulting from investments by owners and distributions to owners. Includes foreign currency translation items, certain pension adjustments, unrealized gains and losses on certain investments in debt and equity securities, other than temporary impairment (OTTI) losses related to factors other than credit losses on available-for-sale and held-to-maturity debt securities that an entity does not intend to sell and it is not more likely than not that the entity will be required to sell before recovery of the amortized cost basis, as well as changes in the fair value of derivatives related to the effective portion of a designated cash flow hedge. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=36458714&loc=d3e637-108580 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14 -URI http://asc.fasb.org/extlink&oid=36458714&loc=d3e681-108580 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14A -URI http://asc.fasb.org/extlink&oid=36458714&loc=SL7669686-108580 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 31 -Article 5 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Article 3 + Details
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