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Changes Recognized in Other Comprehensive Income, Pension (Detail) - USD ($) $ in Thousands | 12 Months Ended
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May 31, 2017 | May 31, 2016
Pension Benefits, U.S. Plans |  |
Changes in plan assets and benefit obligations recognized in other comprehensive income: |  |
Net loss (gain) arising during the year | $ (43,353) | $ 75,474
Amounts recognized as a component of net periodic benefit cost: |  |
Amortization or curtailment recognition of prior service (cost) | (217) | (234)
Amortization or settlement recognition of net (loss) | (22,160) | (16,846)
Total recognized in other comprehensive loss (income) | (65,730) | 58,394
Pension Benefits, Non-U.S. Plans |  |
Changes in plan assets and benefit obligations recognized in other comprehensive income: |  |
Prior service cost | (196) | (349)
Net loss (gain) arising during the year | 2,515 | 7,731
Effect of exchange rates on amounts included in AOCI | (1,736) | (1,953)
Amounts recognized as a component of net periodic benefit cost: |  |
Amortization or curtailment recognition of prior service (cost) | 24 | (7)
Amortization or settlement recognition of net (loss) | (3,054) | (1,823)
Total recognized in other comprehensive loss (income) | $ (2,447) | $ 3,599

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- Definition Amount after tax of cost (credit) of benefit changes attributable to plan participants' prior service resulting from a plan amendment or plan initiation that has not been recognized in net periodic benefit cost (credit). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 10A -Subparagraph (j) -URI http://asc.fasb.org/extlink&oid=66004124&loc=SL7669646-108580 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (i) -URI http://asc.fasb.org/extlink&oid=65897934&loc=d3e1928-114920 Reference 3: 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=66004124&loc=d3e637-108580 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Prior Service Cost -URI http://asc.fasb.org/extlink&oid=49177896 + Details
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- Definition Amount after tax of (increase) decrease in the value of the projected benefit obligation related to a change in an actuarial assumption and increase (decrease) in the value of the plan assets resulting from experience different from that assumed, that has not been recognized in net periodic benefit (cost) credit. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 10A -Subparagraph (i) -URI http://asc.fasb.org/extlink&oid=66004124&loc=SL7669646-108580 Reference 2: 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=66004124&loc=d3e637-108580 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (j) -URI http://asc.fasb.org/extlink&oid=65897934&loc=d3e1928-114920 + Details
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