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Supplemental Guarantor Information - Condensed Consolidating Statement of Cash Flows (Details) - USD ($) $ in Thousands |  | 3 Months Ended | 9 Months Ended
--- | --- | --- | ---
Jun. 30, 2014 | Feb. 29, 2016 | Nov. 30, 2015 | Feb. 28, 2015 | Feb. 29, 2016 | Feb. 28, 2015
Cash flows from operating activities: |  |  |  |  |  |
Net income |  | $ 117,341 |  | $ 94,883 | $ 562,622 | $ 325,403
Adjustments to reconcile net income to net cash provided by (used in) operating activities |  |  |  |  |  |
Depreciation |  |  |  |  | 110,535 | 104,950
Amortization of intangible assets |  |  |  |  | 12,136 | 11,090
Stock-based compensation |  |  |  |  | 57,169 | 36,016
Gain on Storage Transactions |  |  |  |  | (15,786) | (35,036)
Loss on investment in Shred-it Partnership |  |  |  |  | 24,288 | 4,570
(Gain) loss on sale of investment in Shred-it Partnership |  |  |  |  | (374,026) | 0
Gain on sale of stock of an equity method investment |  | 0 |  | 0 | 0 | (21,739)
Deferred income taxes |  |  |  |  | (74,540) | 15,428
Change in current assets and liabilities, net of acquisitions of businesses: |  |  |  |  |  |
Accounts receivable, net |  |  |  |  | (41,523) | (3,168)
Inventories, net |  |  |  |  | (24,009) | 15,370
Uniforms and other rental items in service |  |  |  |  | (6,905) | (22,203)
Prepaid expenses and other current assets |  |  |  |  | (1,580) | (1,609)
Accounts payable |  |  |  |  | 37,370 | (33,615)
Accrued compensation and related liabilities |  |  |  |  | (3,731) | (7,086)
Accrued liabilities and other |  |  |  |  | (18,301) | 1,841
Income taxes, current |  |  |  |  | 53,435 | (12,566)
Net cash provided by operating activities |  |  |  |  | 297,154 | 377,646
Cash flows from investing activities: |  |  |  |  |  |
Capital expenditures |  |  |  |  | (207,502) | (163,040)
Proceeds from redemption of marketable securities |  |  |  |  | 327,779 | 18,711
Purchase of marketable securities and investments |  |  |  |  | (384,796) | (79,947)
Proceeds from Storage Transactions, net of cash contributed |  |  |  |  | 35,338 | 154,891
Proceeds from Shredding Transactions |  |  | $ 578,300 |  | 578,257 | 3,344
Proceeds from sale of stock of an equity method investment |  |  |  |  | 0 | 29,933
Dividends received on equity method investment | $ 5,200 |  |  |  | 0 | 5,247
Acquisitions of businesses, net of cash acquired |  |  |  |  | (151,731) | (13,798)
Other, net |  |  |  |  | 4,433 | 1,583
Net cash provided by (used in) investing activities |  |  |  |  | 201,778 | (43,076)
Cash flows from financing activities: |  |  |  |  |  |
Proceeds from issuance of debt |  |  |  |  | 0 | 0
Repayment of debt |  |  |  |  | (16) | (456)
Exercise of stock-based compensation awards |  |  |  |  | 22,260 | 31,956
Dividends paid |  |  |  |  | (115,273) | (201,941)
Repurchase of common stock |  |  |  |  | (502,439) | (314,648)
Other, net |  |  |  |  | 1,153 | 3,139
Net cash used in financing activities |  |  |  |  | (594,315) | (481,950)
Effect of exchange rate changes on cash and cash equivalents |  |  |  |  | (6,574) | (7,588)
Net decrease in cash and cash equivalents |  |  |  |  | (101,957) | (154,968)
Cash and cash equivalents at beginning of period |  |  |  |  | 417,073 | 513,288
Cash and cash equivalents at end of period |  | 315,116 |  | 358,320 | 315,116 | 358,320
Cintas Corporation |  |  |  |  |  |
Cash flows from operating activities: |  |  |  |  |  |
Net income |  | 117,341 |  | 94,883 | 562,622 | 325,403
Adjustments to reconcile net income to net cash provided by (used in) operating activities |  |  |  |  |  |
Depreciation |  |  |  |  | 0 | 0
Amortization of intangible assets |  |  |  |  | 0 | 0
Stock-based compensation |  |  |  |  | 57,169 | 36,016
Gain on Storage Transactions |  |  |  |  | 0 | 0
Loss on investment in Shred-it Partnership |  |  |  |  | 0 | 0
(Gain) loss on sale of investment in Shred-it Partnership |  |  |  |  | 0 |
Gain on sale of stock of an equity method investment |  |  |  |  |  | 0
Deferred income taxes |  |  |  |  | 0 | 0
Change in current assets and liabilities, net of acquisitions of businesses: |  |  |  |  |  |
Accounts receivable, net |  |  |  |  | 0 | 0
Inventories, net |  |  |  |  | 0 | 0
Uniforms and other rental items in service |  |  |  |  | 0 | 0
Prepaid expenses and other current assets |  |  |  |  | 0 | 0
Accounts payable |  |  |  |  | 0 | 0
Accrued compensation and related liabilities |  |  |  |  | 0 | 0
Accrued liabilities and other |  |  |  |  | 0 | 0
Income taxes, current |  |  |  |  | 0 | 0
Net cash provided by operating activities |  |  |  |  | 619,791 | 361,419
Cash flows from investing activities: |  |  |  |  |  |
Capital expenditures |  |  |  |  | 0 | 0
Proceeds from redemption of marketable securities |  |  |  |  | 0 | 0
Purchase of marketable securities and investments |  |  |  |  | 0 | 0
Proceeds from Storage Transactions, net of cash contributed |  |  |  |  | 0 | 0
Proceeds from Shredding Transactions |  |  |  |  | 0 | 0
Proceeds from sale of stock of an equity method investment |  |  |  |  |  | 0
Dividends received on equity method investment |  |  |  |  |  | 0
Acquisitions of businesses, net of cash acquired |  |  |  |  | 0 | 0
Other, net |  |  |  |  | (24,380) | 123,154
Net cash provided by (used in) investing activities |  |  |  |  | (24,380) | 123,154
Cash flows from financing activities: |  |  |  |  |  |
Proceeds from issuance of debt |  |  |  |  | 0 | 0
Repayment of debt |  |  |  |  | 0 | 0
Exercise of stock-based compensation awards |  |  |  |  | 22,260 | 31,956
Dividends paid |  |  |  |  | (115,232) | (201,881)
Repurchase of common stock |  |  |  |  | (502,439) | (314,648)
Other, net |  |  |  |  | 0 | 0
Net cash used in financing activities |  |  |  |  | (595,411) | (484,573)
Effect of exchange rate changes on cash and cash equivalents |  |  |  |  | 0 | 0
Net decrease in cash and cash equivalents |  |  |  |  | 0 | 0
Cash and cash equivalents at beginning of period |  |  |  |  | 0 | 0
Cash and cash equivalents at end of period |  | 0 |  | 0 | 0 | 0
Corp. 2 |  |  |  |  |  |
Cash flows from operating activities: |  |  |  |  |  |
Net income |  | 37,682 |  | 23,449 | 332,421 | 102,933
Adjustments to reconcile net income to net cash provided by (used in) operating activities |  |  |  |  |  |
Depreciation |  |  |  |  | 66,555 | 58,898
Amortization of intangible assets |  |  |  |  | 11,612 | 10,620
Stock-based compensation |  |  |  |  | 0 | 0
Gain on Storage Transactions |  |  |  |  | (12,547) | (31,113)
Loss on investment in Shred-it Partnership |  |  |  |  | 22,470 | 3,730
(Gain) loss on sale of investment in Shred-it Partnership |  |  |  |  | (384,707) |
Gain on sale of stock of an equity method investment |  |  |  |  |  | 0
Deferred income taxes |  |  |  |  | (82,115) | 69
Change in current assets and liabilities, net of acquisitions of businesses: |  |  |  |  |  |
Accounts receivable, net |  |  |  |  | (29,503) | 2,345
Inventories, net |  |  |  |  | (25,170) | 10,048
Uniforms and other rental items in service |  |  |  |  | (7,378) | (15,228)
Prepaid expenses and other current assets |  |  |  |  | 68 | 34
Accounts payable |  |  |  |  | (339,163) | (174,010)
Accrued compensation and related liabilities |  |  |  |  | (1,850) | (3,903)
Accrued liabilities and other |  |  |  |  | (20,292) | (28,349)
Income taxes, current |  |  |  |  | 53,923 | 15,041
Net cash provided by operating activities |  |  |  |  | (415,676) | (48,885)
Cash flows from investing activities: |  |  |  |  |  |
Capital expenditures |  |  |  |  | (111,219) | (72,623)
Proceeds from redemption of marketable securities |  |  |  |  | 0 | 0
Purchase of marketable securities and investments |  |  |  |  | (3,838) | (2,436)
Proceeds from Storage Transactions, net of cash contributed |  |  |  |  | 32,099 | 93,387
Proceeds from Shredding Transactions |  |  |  |  | 565,643 | 3,344
Proceeds from sale of stock of an equity method investment |  |  |  |  |  | 0
Dividends received on equity method investment |  |  |  |  |  | 0
Acquisitions of businesses, net of cash acquired |  |  |  |  | (127,524) | (13,798)
Other, net |  |  |  |  | 114,598 | 45,096
Net cash provided by (used in) investing activities |  |  |  |  | 469,759 | 52,970
Cash flows from financing activities: |  |  |  |  |  |
Proceeds from issuance of debt |  |  |  |  | 0 | 0
Repayment of debt |  |  |  |  | (309) | (726)
Exercise of stock-based compensation awards |  |  |  |  | 0 | 0
Dividends paid |  |  |  |  | 0 | 0
Repurchase of common stock |  |  |  |  | 0 | 0
Other, net |  |  |  |  | 1,464 | 1,464
Net cash used in financing activities |  |  |  |  | 1,155 | 738
Effect of exchange rate changes on cash and cash equivalents |  |  |  |  | 0 | 0
Net decrease in cash and cash equivalents |  |  |  |  | 55,238 | 4,823
Cash and cash equivalents at beginning of period |  |  |  |  | 74,145 | 73,540
Cash and cash equivalents at end of period |  | 129,383 |  | 78,363 | 129,383 | 78,363
Subsidiary Guarantors |  |  |  |  |  |
Cash flows from operating activities: |  |  |  |  |  |
Net income |  | 79,673 |  | 66,442 | 231,247 | 210,203
Adjustments to reconcile net income to net cash provided by (used in) operating activities |  |  |  |  |  |
Depreciation |  |  |  |  | 37,094 | 38,081
Amortization of intangible assets |  |  |  |  | 218 | 45
Stock-based compensation |  |  |  |  | 0 | 0
Gain on Storage Transactions |  |  |  |  | 0 | 86
Loss on investment in Shred-it Partnership |  |  |  |  | 0 | (206)
(Gain) loss on sale of investment in Shred-it Partnership |  |  |  |  | 0 |
Gain on sale of stock of an equity method investment |  |  |  |  |  | (21,739)
Deferred income taxes |  |  |  |  | 5,895 | 14,639
Change in current assets and liabilities, net of acquisitions of businesses: |  |  |  |  |  |
Accounts receivable, net |  |  |  |  | (11,703) | (8,184)
Inventories, net |  |  |  |  | (1,583) | 4,361
Uniforms and other rental items in service |  |  |  |  | 3,163 | (4,420)
Prepaid expenses and other current assets |  |  |  |  | (1,743) | (1,460)
Accounts payable |  |  |  |  | 366,402 | 137,440
Accrued compensation and related liabilities |  |  |  |  | (1,641) | (1,216)
Accrued liabilities and other |  |  |  |  | 2,778 | 25,082
Income taxes, current |  |  |  |  | (356) | (26,508)
Net cash provided by operating activities |  |  |  |  | 629,771 | 366,204
Cash flows from investing activities: |  |  |  |  |  |
Capital expenditures |  |  |  |  | (85,885) | (81,881)
Proceeds from redemption of marketable securities |  |  |  |  | 0 | 0
Purchase of marketable securities and investments |  |  |  |  | (2,235) | 47,169
Proceeds from Storage Transactions, net of cash contributed |  |  |  |  | 0 | (89)
Proceeds from Shredding Transactions |  |  |  |  | 0 | 0
Proceeds from sale of stock of an equity method investment |  |  |  |  |  | 29,933
Dividends received on equity method investment |  |  |  |  |  | 5,247
Acquisitions of businesses, net of cash acquired |  |  |  |  | 0 | 0
Other, net |  |  |  |  | (638,714) | (545,939)
Net cash provided by (used in) investing activities |  |  |  |  | (726,834) | (545,560)
Cash flows from financing activities: |  |  |  |  |  |
Proceeds from issuance of debt |  |  |  |  | (55) | (2,225)
Repayment of debt |  |  |  |  | 1,053 | 3,421
Exercise of stock-based compensation awards |  |  |  |  | 0 | 0
Dividends paid |  |  |  |  | 0 | 0
Repurchase of common stock |  |  |  |  | 0 | 0
Other, net |  |  |  |  | 0 | 0
Net cash used in financing activities |  |  |  |  | 998 | 1,196
Effect of exchange rate changes on cash and cash equivalents |  |  |  |  | 0 | 0
Net decrease in cash and cash equivalents |  |  |  |  | (96,065) | (178,160)
Cash and cash equivalents at beginning of period |  |  |  |  | 249,203 | 399,525
Cash and cash equivalents at end of period |  | 153,138 |  | 221,365 | 153,138 | 221,365
Non- Guarantors |  |  |  |  |  |
Cash flows from operating activities: |  |  |  |  |  |
Net income |  | 1,707 |  | 4,265 | 3,071 | 14,079
Adjustments to reconcile net income to net cash provided by (used in) operating activities |  |  |  |  |  |
Depreciation |  |  |  |  | 6,886 | 7,971
Amortization of intangible assets |  |  |  |  | 306 | 425
Stock-based compensation |  |  |  |  | 0 | 0
Gain on Storage Transactions |  |  |  |  | (3,239) | (4,009)
Loss on investment in Shred-it Partnership |  |  |  |  | 1,818 | 1,046
(Gain) loss on sale of investment in Shred-it Partnership |  |  |  |  | 10,681 |
Gain on sale of stock of an equity method investment |  |  |  |  |  | 0
Deferred income taxes |  |  |  |  | 1,680 | 720
Change in current assets and liabilities, net of acquisitions of businesses: |  |  |  |  |  |
Accounts receivable, net |  |  |  |  | (317) | 2,671
Inventories, net |  |  |  |  | (1,946) | (1,237)
Uniforms and other rental items in service |  |  |  |  | (2,118) | (2,161)
Prepaid expenses and other current assets |  |  |  |  | 95 | (183)
Accounts payable |  |  |  |  | 10,132 | 2,949
Accrued compensation and related liabilities |  |  |  |  | (240) | (1,967)
Accrued liabilities and other |  |  |  |  | (1,511) | 4,362
Income taxes, current |  |  |  |  | (132) | (1,099)
Net cash provided by operating activities |  |  |  |  | 25,166 | 23,567
Cash flows from investing activities: |  |  |  |  |  |
Capital expenditures |  |  |  |  | (10,398) | (8,536)
Proceeds from redemption of marketable securities |  |  |  |  | 327,779 | 18,711
Purchase of marketable securities and investments |  |  |  |  | (385,760) | (68,136)
Proceeds from Storage Transactions, net of cash contributed |  |  |  |  | 3,239 | 61,593
Proceeds from Shredding Transactions |  |  |  |  | 12,614 | 0
Proceeds from sale of stock of an equity method investment |  |  |  |  |  | 0
Dividends received on equity method investment |  |  |  |  |  | 0
Acquisitions of businesses, net of cash acquired |  |  |  |  | (24,207) | 0
Other, net |  |  |  |  | (2,656) | (2,677)
Net cash provided by (used in) investing activities |  |  |  |  | (79,389) | 955
Cash flows from financing activities: |  |  |  |  |  |
Proceeds from issuance of debt |  |  |  |  | 55 | 2,225
Repayment of debt |  |  |  |  | (36) | (2,405)
Exercise of stock-based compensation awards |  |  |  |  | 0 | 0
Dividends paid |  |  |  |  | (41) | (60)
Repurchase of common stock |  |  |  |  | 0 | 0
Other, net |  |  |  |  | (311) | 1,675
Net cash used in financing activities |  |  |  |  | (333) | 1,435
Effect of exchange rate changes on cash and cash equivalents |  |  |  |  | (6,574) | (7,588)
Net decrease in cash and cash equivalents |  |  |  |  | (61,130) | 18,369
Cash and cash equivalents at beginning of period |  |  |  |  | 93,725 | 40,223
Cash and cash equivalents at end of period |  | 32,595 |  | 58,592 | 32,595 | 58,592
Eliminations |  |  |  |  |  |
Cash flows from operating activities: |  |  |  |  |  |
Net income |  | (119,062) |  | (94,156) | (566,739) | (327,215)
Adjustments to reconcile net income to net cash provided by (used in) operating activities |  |  |  |  |  |
Depreciation |  |  |  |  | 0 | 0
Amortization of intangible assets |  |  |  |  | 0 | 0
Stock-based compensation |  |  |  |  | 0 | 0
Gain on Storage Transactions |  |  |  |  | 0 | 0
Loss on investment in Shred-it Partnership |  |  |  |  | 0 | 0
(Gain) loss on sale of investment in Shred-it Partnership |  |  |  |  | 0 |
Gain on sale of stock of an equity method investment |  |  |  |  |  | 0
Deferred income taxes |  |  |  |  | 0 | 0
Change in current assets and liabilities, net of acquisitions of businesses: |  |  |  |  |  |
Accounts receivable, net |  |  |  |  | 0 | 0
Inventories, net |  |  |  |  | 4,690 | 2,198
Uniforms and other rental items in service |  |  |  |  | (572) | (394)
Prepaid expenses and other current assets |  |  |  |  | 0 | 0
Accounts payable |  |  |  |  | (1) | 6
Accrued compensation and related liabilities |  |  |  |  | 0 | 0
Accrued liabilities and other |  |  |  |  | 724 | 746
Income taxes, current |  |  |  |  | 0 | 0
Net cash provided by operating activities |  |  |  |  | (561,898) | (324,659)
Cash flows from investing activities: |  |  |  |  |  |
Capital expenditures |  |  |  |  | 0 | 0
Proceeds from redemption of marketable securities |  |  |  |  | 0 | 0
Purchase of marketable securities and investments |  |  |  |  | 7,037 | (56,544)
Proceeds from Storage Transactions, net of cash contributed |  |  |  |  | 0 | 0
Proceeds from Shredding Transactions |  |  |  |  | 0 | 0
Proceeds from sale of stock of an equity method investment |  |  |  |  |  | 0
Dividends received on equity method investment |  |  |  |  |  | 0
Acquisitions of businesses, net of cash acquired |  |  |  |  | 0 | 0
Other, net |  |  |  |  | 555,585 | 381,949
Net cash provided by (used in) investing activities |  |  |  |  | 562,622 | 325,405
Cash flows from financing activities: |  |  |  |  |  |
Proceeds from issuance of debt |  |  |  |  | 0 | 0
Repayment of debt |  |  |  |  | (724) | (746)
Exercise of stock-based compensation awards |  |  |  |  | 0 | 0
Dividends paid |  |  |  |  | 0 | 0
Repurchase of common stock |  |  |  |  | 0 | 0
Other, net |  |  |  |  | 0 | 0
Net cash used in financing activities |  |  |  |  | (724) | (746)
Effect of exchange rate changes on cash and cash equivalents |  |  |  |  | 0 | 0
Net decrease in cash and cash equivalents |  |  |  |  | 0 | 0
Cash and cash equivalents at beginning of period |  |  |  |  | 0 | 0
Cash and cash equivalents at end of period |  | $ 0 |  | $ 0 | $ 0 | $ 0

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- Definition Amount before tax of gain (loss) not previously recognized resulting from the disposal of a discontinued operation. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 20 -Section 45 -Paragraph 3B -URI http://asc.fasb.org/extlink&oid=51716988&loc=SL51721525-107759 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=51717284&loc=d3e1361-107760 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 20 -Section 45 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=51716988&loc=d3e957-107759 + Details
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- Definition The effect of exchange rate changes on cash balances in continuing operations held in foreign currencies. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 24 -URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3521-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 830 -SubTopic 230 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=49171198&loc=d3e33268-110906 + Details
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- Definition This item represents the entity's proportionate share for the period of the net income (loss) of its investee (such as unconsolidated subsidiaries and joint ventures) to which the equity method of accounting is applied. This item includes income or expense related to stock-based compensation based on the investor's grant of stock to employees of an equity method investee. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3602-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 323 -SubTopic 10 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=35755396&loc=d3e33749-111570 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.12) -URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 9 -Article 5 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Paragraph 11 -Article 7 + Details
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- Definition The increase (decrease) during the reporting period in the aggregate amount of obligations related to services received from employees, such as accrued salaries and bonuses, payroll taxes and fringe benefits. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3602-108585 + Details
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- Definition The cash outflow to reacquire common stock during the period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3291-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Financing Activities -URI http://asc.fasb.org/extlink&oid=6513228 + Details
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- Definition The cash inflow associated with the sale of equity method investments, which are investments in joint ventures and entities in which the entity has an equity ownership interest normally of 20 to 50 percent and exercises significant influence. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Investing Activities -URI http://asc.fasb.org/extlink&oid=6516133 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 12 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3179-108585 + Details
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