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Supplemental Guarantor Condensed Consolidating Financials - Schedule of Consolidating Statement of Cash Flows (Detail) - USD ($) $ in Millions |  | 9 Months Ended
--- | --- | ---
Jan. 07, 2015 | Jun. 27, 2015 | Jun. 28, 2014
OPERATING ACTIVITIES |  |  |
Net cash provided by (used in) operating activities |  | $ 553.6 | $ 376.7
INVESTING ACTIVITIES |  |  |
Net proceeds from sale of business |  | 0.0 | 2.4
Purchase of property and equipment |  | (27.9) | (30.9)
Increase in equipment under customer usage agreements |  | (30.2) | (26.9)
Net sales of insurance contracts |  | (6.4) | 13.8
Purchases of mutual funds |  | 0.0 | 29.7
Sales of mutual funds |  | 7.7 | 22.4
(Increase) decrease in other assets |  | 0.0 | (3.0)
Net cash used in investing activities |  | (56.8) | (51.9)
FINANCING ACTIVITIES |  |  |
Repayment of long-term debt |  | (2,045.0) | (578.8)
Proceeds from long-term debt, net of issuance costs |  | (1,495.1) | 0.0
Proceeds from revolving credit line |  | 175.0 | 0.0
Payment of debt issuance costs |  | 8.3 | 2.4
Payment of deferred acquisition consideration |  | 0.0 | 5.0
Purchase of interest rate caps | $ (6.1) | (6.1) | 0.0
Net proceeds from issuance of common stock pursuant to employee stock plans |  | 50.4 | 75.8
Excess tax benefit related to equity awards |  | 8.0 | 5.2
Payment of minimum tax withholdings on net share settlements of equity awards |  | (12.6) | (9.2)
Net cash used in financing activities |  | (343.5) | (514.4)
Effect of exchange rate changes on cash and cash equivalents |  | (4.4) | (0.4)
Net increase (decrease) in cash and cash equivalents |  | 148.9 | (190.0)
Cash and cash equivalents, beginning of period |  | 736.1 | 822.5
Cash and cash equivalents, end of period |  | 885.0 | 632.5
Eliminations |  |  |
OPERATING ACTIVITIES |  |  |
Net cash provided by (used in) operating activities |  | 0.0 | 0.0
INVESTING ACTIVITIES |  |  |
Net proceeds from sale of business |  |  | 0.0
Purchase of property and equipment |  | 0.0 | 0.0
Increase in equipment under customer usage agreements |  | 0.0 | 0.0
Net sales of insurance contracts |  | 0.0 | 0.0
Purchases of mutual funds |  |  | 0.0
Sales of mutual funds |  | 0.0 | 0.0
(Increase) decrease in other assets |  | 0.0 | 0.0
Net cash used in investing activities |  | 0.0 | 0.0
FINANCING ACTIVITIES |  |  |
Repayment of long-term debt |  | 0.0 | 0.0
Proceeds from long-term debt, net of issuance costs |  | 0.0 |
Proceeds from revolving credit line |  | 0.0 |
Payment of debt issuance costs |  | 0.0 | 0.0
Payment of deferred acquisition consideration |  |  | 0.0
Purchase of interest rate caps |  | 0.0 |
Net proceeds from issuance of common stock pursuant to employee stock plans |  | 0.0 | 0.0
Excess tax benefit related to equity awards |  | 0.0 | 0.0
Payment of minimum tax withholdings on net share settlements of equity awards |  | 0.0 | 0.0
Net cash used in financing activities |  | 0.0 | 0.0
Effect of exchange rate changes on cash and cash equivalents |  | 0.0 | 0.0
Net increase (decrease) in cash and cash equivalents |  | 0.0 | 0.0
Cash and cash equivalents, beginning of period |  | 0.0 | 0.0
Cash and cash equivalents, end of period |  | 0.0 | 0.0
Parent/Issuer |  |  |
OPERATING ACTIVITIES |  |  |
Net cash provided by (used in) operating activities |  | 599.4 | 412.6
INVESTING ACTIVITIES |  |  |
Net proceeds from sale of business |  |  | 0.0
Purchase of property and equipment |  | (8.0) | (9.4)
Increase in equipment under customer usage agreements |  | 0.0 | (0.5)
Net sales of insurance contracts |  | (6.4) | 13.8
Purchases of mutual funds |  |  | 29.7
Sales of mutual funds |  | 7.7 | 22.4
(Increase) decrease in other assets |  | (0.8) | (1.0)
Net cash used in investing activities |  | (7.5) | (4.4)
FINANCING ACTIVITIES |  |  |
Repayment of long-term debt |  | (2,045.0) | (578.8)
Proceeds from long-term debt, net of issuance costs |  | (1,495.1) |
Proceeds from revolving credit line |  | 175.0 |
Payment of debt issuance costs |  | 8.3 | 2.4
Payment of deferred acquisition consideration |  |  | 5.0
Purchase of interest rate caps |  | (6.1) |
Net proceeds from issuance of common stock pursuant to employee stock plans |  | 50.4 | 75.8
Excess tax benefit related to equity awards |  | 8.0 | 5.2
Payment of minimum tax withholdings on net share settlements of equity awards |  | (12.6) | (9.2)
Net cash used in financing activities |  | (343.5) | (514.4)
Effect of exchange rate changes on cash and cash equivalents |  | 0.0 | 0.0
Net increase (decrease) in cash and cash equivalents |  | 248.4 | (106.2)
Cash and cash equivalents, beginning of period |  | 288.1 | 321.6
Cash and cash equivalents, end of period |  | 536.5 | 215.4
Guarantor Subsidiaries |  |  |
OPERATING ACTIVITIES |  |  |
Net cash provided by (used in) operating activities |  | (77.9) | (81.1)
INVESTING ACTIVITIES |  |  |
Net proceeds from sale of business |  |  | 0.0
Purchase of property and equipment |  | (14.1) | (15.3)
Increase in equipment under customer usage agreements |  | (19.6) | (15.8)
Net sales of insurance contracts |  | 0.0 | 0.0
Purchases of mutual funds |  |  | 0.0
Sales of mutual funds |  | 0.0 | 0.0
(Increase) decrease in other assets |  | (0.2) | (3.0)
Net cash used in investing activities |  | (33.9) | (34.1)
FINANCING ACTIVITIES |  |  |
Repayment of long-term debt |  | 0.0 | 0.0
Proceeds from long-term debt, net of issuance costs |  | 0.0 |
Proceeds from revolving credit line |  | 0.0 |
Payment of debt issuance costs |  | 0.0 | 0.0
Payment of deferred acquisition consideration |  |  | 0.0
Purchase of interest rate caps |  | 0.0 |
Net proceeds from issuance of common stock pursuant to employee stock plans |  | 0.0 | 0.0
Excess tax benefit related to equity awards |  | 0.0 | 0.0
Payment of minimum tax withholdings on net share settlements of equity awards |  | 0.0 | 0.0
Net cash used in financing activities |  | 0.0 | 0.0
Effect of exchange rate changes on cash and cash equivalents |  | (0.2) | 0.4
Net increase (decrease) in cash and cash equivalents |  | (112.0) | (114.8)
Cash and cash equivalents, beginning of period |  | 287.8 | 387.4
Cash and cash equivalents, end of period |  | 175.8 | 272.6
Non-Guarantor Subsidiaries |  |  |
OPERATING ACTIVITIES |  |  |
Net cash provided by (used in) operating activities |  | 32.1 | 45.2
INVESTING ACTIVITIES |  |  |
Net proceeds from sale of business |  |  | 2.4
Purchase of property and equipment |  | (5.8) | (6.2)
Increase in equipment under customer usage agreements |  | (10.6) | (10.6)
Net sales of insurance contracts |  | 0.0 | 0.0
Purchases of mutual funds |  |  | 0.0
Sales of mutual funds |  | 0.0 | 0.0
(Increase) decrease in other assets |  | 1.0 | 1.0
Net cash used in investing activities |  | (15.4) | (13.4)
FINANCING ACTIVITIES |  |  |
Repayment of long-term debt |  | 0.0 | 0.0
Proceeds from long-term debt, net of issuance costs |  | 0.0 |
Proceeds from revolving credit line |  | 0.0 |
Payment of debt issuance costs |  | 0.0 | 0.0
Payment of deferred acquisition consideration |  |  | 0.0
Purchase of interest rate caps |  | 0.0 |
Net proceeds from issuance of common stock pursuant to employee stock plans |  | 0.0 | 0.0
Excess tax benefit related to equity awards |  | 0.0 | 0.0
Payment of minimum tax withholdings on net share settlements of equity awards |  | 0.0 | 0.0
Net cash used in financing activities |  | 0.0 | 0.0
Effect of exchange rate changes on cash and cash equivalents |  | (4.2) | (0.8)
Net increase (decrease) in cash and cash equivalents |  | 12.5 | 31.0
Cash and cash equivalents, beginning of period |  | 160.2 | 113.5
Cash and cash equivalents, end of period |  | $ 172.7 | $ 144.5

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