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Schedule II - Valuation and Qualifying Accounts and Reserves | 12 Months Ended
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May 31, 2017
Valuation and Qualifying Accounts [Abstract] |
Valuation and Qualifying Accounts and Reserves | Schedule II — Valuation and Qualifying Accounts and Reserves
(In thousands) | Balance at Beginning of Year |  | (1) Additions |  | (2) Deductions |  | Balance at End of Year
Allowance for Doubtful Accounts |  |  |  |  |  |  |
May 31, 2015 | $ | 14,262 |  |  | $ | 5,289 |  |  | $ | 4,054 |  |  | $ | 15,497 |
May 31, 2016 | $ | 15,497 |  |  | $ | 8,274 |  |  | $ | 4,668 |  |  | $ | 19,103 |
May 31, 2017 | $ | 19,103 |  |  | $ | 6,446 |  |  | $ | 5,024 |  |  | $ | 20,525 |
Reserve for Obsolete Inventory |  |  |  |  |  |  |
May 31, 2015 | $ | 30,459 |  |  | $ | 2,952 |  |  | $ | 2,880 |  |  | $ | 30,531 |
May 31, 2016 | $ | 30,531 |  |  | $ | 5,195 |  |  | $ | 3,010 |  |  | $ | 32,716 |
May 31, 2017 | $ | 32,716 |  |  | $ | 10,049 |  |  | $ | 4,460 |  |  | $ | 38,305 |
(1) | Represents amounts charged to expense to increase reserve for estimated future bad debts or to increase reserve for obsolete inventory. Amounts related to inventory are computed by performing a thorough analysis of future marketability by specific inventory item as well as an estimate based on Cintas' historical rates of obsolescence.
(2) | Represents reductions in the balance sheet reserve due to the actual write-off of non-collectible accounts receivable or the physical disposal of obsolete inventory items. These amounts do not impact Cintas' consolidated income statement.

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- Definition The entire disclosure for any allowance and reserve accounts (their beginning and ending balances, as well as a reconciliation by type of activity during the period). Alternatively, disclosure of the required information may be within the footnotes to the financial statements or a supplemental schedule to the financial statements. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -URI http://asc.fasb.org/topic&trid=2122369 + Details
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- References No definition available. + Details
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