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SCHEDULE II VALUATION AND QUALIFYING ACCOUNTS (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
May 31, 2016 | May 31, 2015 | May 31, 2014
Allowance for doubtful accounts |  |  |
Movement in Valuation Allowances and Reserves [Roll Forward] |  |  |
Balance at Beginning of Year | $ 468 | $ 401 | $ 509
Additions: Charged to Costs and Expenses | 515 | 324 | 174
Deductions: Uncollectible Accounts Write-Off | 630 | 257 | 282
Balance at End of Year | 353 | 468 | 401
Reserve for operating losses-merchant card processing |  |  |
Movement in Valuation Allowances and Reserves [Roll Forward] |  |  |
Balance at Beginning of Year | 1,286 | 1,724 | 2,318
Additions: Charged to Costs and Expenses | 3,729 | 4,928 | 8,658
Deductions: Uncollectible Accounts Write-Off | 2,555 | 5,366 | 9,252
Balance at End of Year | 2,460 | 1,286 | 1,724
Reserve for sales allowances-Merchant card processing |  |  |
Movement in Valuation Allowances and Reserves [Roll Forward] |  |  |
Balance at Beginning of Year | 4,929 | 601 | 961
Additions: Charged to Costs and Expenses | 3,571 | 7,974 | 1,330
Deductions: Uncollectible Accounts Write-Off | 7,450 | 3,646 | 1,690
Balance at End of Year | 1,050 | 4,929 | 601
Reserve for operating losses-check guarantee processing |  |  |
Movement in Valuation Allowances and Reserves [Roll Forward] |  |  |
Balance at Beginning of Year | 2,684 | 2,998 | 3,144
Additions: Charged to Costs and Expenses | 22,827 | 9,578 | 11,916
Deductions: Uncollectible Accounts Write-Off | 20,643 | 9,892 | 12,062
Balance at End of Year | 4,868 | 2,684 | 2,998
Deferred income tax asset valuation allowance |  |  |
Movement in Valuation Allowances and Reserves [Roll Forward] |  |  |
Balance at Beginning of Year | 3,823 | 7,199 | 28,464
Additions: Charged to Costs and Expenses | 11,296 | (3,376) | (21,265)
Deductions: Uncollectible Accounts Write-Off | 0 | 0 | 0
Balance at End of Year | $ 15,119 | $ 3,823 | $ 7,199

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- Definition Total of allowances and reserves, the valuation and qualifying accounts that are either netted against the cost of an asset (in order to value it at its carrying value) or that reflect a liability established to represent expected future costs. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e24092-122690 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 09 -Article 12 + Details
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- Definition Total of allowances and reserves, the valuation and qualifying accounts that are either netted against the cost of an asset (in order to value it at its carrying value) or that reflect a liability established to represent expected future costs, charged to costs and expenses. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e24092-122690 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 09 -Article 12 + Details
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- Definition Total of the deductions in a given period to allowances and reserves, the valuation and qualifying accounts that are either netted against the cost of an asset (in order to value it at its carrying value) or that reflect a liability established to represent expected future costs, representing receivables written off as uncollectible and portions of the reserves utilized, respectively. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e24092-122690 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 09 -Article 12 + Details
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