Supplemental Guarantor Condensed Consolidating Financial Statements (Cash Flows) (Details) - USD ($) $ in Millions | 6 Months Ended |
Feb. 28, 2019 | Feb. 28, 2018 |
Condensed Financial Statements, Captions [Line Items] | | |
Net cash provided by operating activities | $ 188.3 | $ 177.6 |
Cash flows from investing activities: | | |
Purchases of property, plant, and equipment | (24.9) | (20.9) |
Other investing activities | 2.9 | 0.7 |
Investments in subsidiaries | | 0 |
Acquisitions of business, net of cash acquired | 0 | (26.4) |
Net cash used for investing activities | (22) | (46.6) |
Cash flows from financing activities: | | |
Borrowings on credit facility | 86.5 | 0 |
Repayments of borrowings on credit facility | (86.5) | 0 |
Repayments of long-term debt | (0.2) | (0.2) |
Proceeds from stock option exercises and other | 0.3 | 1.4 |
Repurchases of common stock | (48.7) | (194.3) |
Withholding taxes on net settlement of equity awards | (4.3) | (6.7) |
Intercompany Capital | | 0 |
Dividends paid | (10.5) | (10.9) |
Net cash used for financing activities | (63.4) | (210.7) |
Effect of exchange rates changes on cash | 0 | (1.6) |
Net change in cash and cash equivalents | 102.9 | (81.3) |
Cash and cash equivalents at beginning of period | 129.1 | 311.1 |
Cash and cash equivalents at end of period | 232 | 229.8 |
Parent | | |
Condensed Financial Statements, Captions [Line Items] | | |
Net cash provided by operating activities | 133.8 | 141.1 |
Cash flows from investing activities: | | |
Purchases of property, plant, and equipment | 0 | 0 |
Other investing activities | 0.8 | 0.7 |
Investments in subsidiaries | | (26.4) |
Acquisitions of business, net of cash acquired | | 0 |
Net cash used for investing activities | 0.8 | (25.7) |
Cash flows from financing activities: | | |
Borrowings on credit facility | 0 | |
Repayments of borrowings on credit facility | 0 | |
Repayments of long-term debt | 0 | 0 |
Proceeds from stock option exercises and other | 0.3 | 1.4 |
Repurchases of common stock | (48.7) | (194.3) |
Withholding taxes on net settlement of equity awards | (4.3) | (6.7) |
Intercompany Capital | | 0 |
Dividends paid | (10.5) | (10.9) |
Net cash used for financing activities | (63.2) | (210.5) |
Effect of exchange rates changes on cash | 0.2 | 0 |
Net change in cash and cash equivalents | 71.6 | (95.1) |
Cash and cash equivalents at beginning of period | 80.5 | 237.7 |
Cash and cash equivalents at end of period | 152.1 | 142.6 |
Subsidiary Issuer | | |
Condensed Financial Statements, Captions [Line Items] | | |
Net cash provided by operating activities | 35.9 | 14.4 |
Cash flows from investing activities: | | |
Purchases of property, plant, and equipment | (20.2) | (15.2) |
Other investing activities | 2.1 | 0 |
Investments in subsidiaries | | 0 |
Acquisitions of business, net of cash acquired | | 0 |
Net cash used for investing activities | (18.1) | (15.2) |
Cash flows from financing activities: | | |
Borrowings on credit facility | 86.5 | |
Repayments of borrowings on credit facility | (86.5) | |
Repayments of long-term debt | 0 | 0 |
Proceeds from stock option exercises and other | 0 | 0 |
Repurchases of common stock | 0 | 0 |
Withholding taxes on net settlement of equity awards | 0 | 0 |
Intercompany Capital | | 0 |
Dividends paid | 0 | 0 |
Net cash used for financing activities | 0 | 0 |
Effect of exchange rates changes on cash | 0 | 0.8 |
Net change in cash and cash equivalents | 17.8 | 0 |
Cash and cash equivalents at beginning of period | 0 | 0 |
Cash and cash equivalents at end of period | 17.8 | 0 |
Subsidiary Guarantor | | |
Condensed Financial Statements, Captions [Line Items] | | |
Net cash provided by operating activities | 0 | 0 |
Cash flows from investing activities: | | |
Purchases of property, plant, and equipment | 0 | 0 |
Other investing activities | 0 | 0 |
Investments in subsidiaries | | 0 |
Acquisitions of business, net of cash acquired | | 0 |
Net cash used for investing activities | 0 | 0 |
Cash flows from financing activities: | | |
Borrowings on credit facility | 0 | |
Repayments of borrowings on credit facility | 0 | |
Repayments of long-term debt | 0 | 0 |
Proceeds from stock option exercises and other | 0 | 0 |
Repurchases of common stock | 0 | 0 |
Withholding taxes on net settlement of equity awards | 0 | 0 |
Intercompany Capital | | 0 |
Dividends paid | 0 | 0 |
Net cash used for financing activities | 0 | 0 |
Effect of exchange rates changes on cash | 0 | 0 |
Net change 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 |
Non- Guarantors | | |
Condensed Financial Statements, Captions [Line Items] | | |
Net cash provided by operating activities | 18.6 | 22.1 |
Cash flows from investing activities: | | |
Purchases of property, plant, and equipment | (4.7) | (5.7) |
Other investing activities | 0 | 0 |
Investments in subsidiaries | | 0 |
Acquisitions of business, net of cash acquired | | (26.4) |
Net cash used for investing activities | (4.7) | (32.1) |
Cash flows from financing activities: | | |
Borrowings on credit facility | 0 | |
Repayments of borrowings on credit facility | 0 | |
Repayments of long-term debt | (0.2) | (0.2) |
Proceeds from stock option exercises and other | 0 | 0 |
Repurchases of common stock | 0 | 0 |
Withholding taxes on net settlement of equity awards | 0 | 0 |
Intercompany Capital | | 26.4 |
Dividends paid | 0 | 0 |
Net cash used for financing activities | (0.2) | 26.2 |
Effect of exchange rates changes on cash | (0.2) | (2.4) |
Net change in cash and cash equivalents | 13.5 | 13.8 |
Cash and cash equivalents at beginning of period | 48.6 | 73.4 |
Cash and cash equivalents at end of period | 62.1 | 87.2 |
Consolidating Adjustments | | |
Condensed Financial Statements, Captions [Line Items] | | |
Net cash provided by operating activities | 0 | 0 |
Cash flows from investing activities: | | |
Purchases of property, plant, and equipment | 0 | 0 |
Other investing activities | 0 | 0 |
Investments in subsidiaries | | 26.4 |
Acquisitions of business, net of cash acquired | | 0 |
Net cash used for investing activities | 0 | 26.4 |
Cash flows from financing activities: | | |
Borrowings on credit facility | 0 | |
Repayments of borrowings on credit facility | 0 | |
Repayments of long-term debt | 0 | 0 |
Proceeds from stock option exercises and other | 0 | 0 |
Repurchases of common stock | 0 | 0 |
Withholding taxes on net settlement of equity awards | 0 | 0 |
Intercompany Capital | | (26.4) |
Dividends paid | 0 | 0 |
Net cash used for financing activities | 0 | (26.4) |
Effect of exchange rates changes on cash | 0 | 0 |
Net change 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 |