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Consolidated Statement of Stockholder's Equity Statement - USD ($) $ in Thousands | Total | Common Stock | Additional Paid-in Capital | Accumulated Deficit | Accumulated Other Comprehensive Loss | Cash Flow Hedging | Cash Flow Hedging Accumulated Other Comprehensive Loss | Net Investment Hedging | Net Investment Hedging Accumulated Other Comprehensive Loss
--- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Beginning balance (in shares) at Sep. 30, 2018 |  | 117,981,000 |  |  |  |  |  |  |
Beginning balance at Sep. 30, 2018 | $ 874,589 | $ 1,180 | $ 1,558,403 | $ (599,409) | $ (85,585) |  |  |  |
Common stock issued for employee stock-based awards (in shares) |  | 1,108,000 |  |  |  |  |  |  |
Common stock issued for employee stock-based awards | 0 | $ 11 | (11) |  |  |  |  |  |
Shares surrendered by employees to pay taxes related to stock-based awards (in shares) |  | (388,000) |  |  |  |  |  |  |
Shares surrendered by employees to pay taxes related to stock-based awards | (34,491) | $ (4) | (34,487) |  |  |  |  |  |
Common stock issued | (140) |  | (140) |  |  |  |  |  |
Stock Issued During Period, Shares, Employee Stock Purchase Plans |  | 122,000 |  |  |  |  |  |  |
Stock Issued During Period, Value, Employee Stock Purchase Plan | 8,798 | $ 1 | 8,797 |  |  |  |  |  |
Compensation expense from stock-based awards | 56,374 |  | 56,374 |  |  |  |  |  |
Net income (loss) | (22,528) |  |  | (22,528) |  |  |  |  |
Stock Repurchased and Retired During Period, Shares |  | (725,000) |  |  |  |  |  |  |
Stock Repurchased and Retired During Period, Value | (64,994) | $ (7) | (64,987) |  |  |  |  |  |
Unrealized loss on hedging instruments | 277 |  |  |  |  | $ (385) | $ (385) | $ 662 | $ 662
Foreign currency translation adjustment | (11,602) |  |  |  | (11,602) |  |  |  |
Unrealized loss on available-for-sale securities, net of tax | 302 |  |  |  | 302 |  |  |  |
Change in pension benefits, net of tax | 1,484 |  |  |  | 1,484 |  |  |  |
Ending balance (in shares) at Mar. 30, 2019 |  | 118,098,000 |  |  |  |  |  |  |
Ending balance at Mar. 30, 2019 | 1,247,708 | $ 1,181 | 1,523,949 | (182,298) | (95,124) |  |  |  |
Beginning balance (in shares) at Dec. 29, 2018 |  | 118,657,000 |  |  |  |  |  |  |
Beginning balance at Dec. 29, 2018 | 1,321,169 | $ 1,187 | 1,553,875 | (138,785) | (95,108) |  |  |  |
Common stock issued for employee stock-based awards (in shares) |  | 52,000 |  |  |  |  |  |  |
Common stock issued for employee stock-based awards | 0 | $ 0 | 0 |  |  |  |  |  |
Shares surrendered by employees to pay taxes related to stock-based awards (in shares) |  | (8,000) |  |  |  |  |  |  |
Shares surrendered by employees to pay taxes related to stock-based awards | (703) | $ 0 | (703) |  |  |  |  |  |
Stock Issued During Period, Shares, Employee Stock Purchase Plans |  | 122,000 |  |  |  |  |  |  |
Stock Issued During Period, Value, Employee Stock Purchase Plan | 8,798 | $ 1 | 8,797 |  |  |  |  |  |
Compensation expense from stock-based awards | 26,967 |  | 26,967 |  |  |  |  |  |
Net income (loss) | (43,513) |  |  | (43,513) |  |  |  |  |
Stock Repurchased and Retired During Period, Shares |  | (725,000) |  |  |  |  |  |  |
Stock Repurchased and Retired During Period, Value | (64,994) | $ (7) | (64,987) |  |  |  |  |  |
Unrealized loss on hedging instruments | 2,955 |  |  |  |  |  |  | 2,955 | 2,955
Foreign currency translation adjustment | (4,033) |  |  |  | (4,033) |  |  |  |
Unrealized loss on available-for-sale securities, net of tax | 289 |  |  |  | 289 |  |  |  |
Change in pension benefits, net of tax | 773 |  |  |  | 773 |  |  |  |
Ending balance (in shares) at Mar. 30, 2019 |  | 118,098,000 |  |  |  |  |  |  |
Ending balance at Mar. 30, 2019 | $ 1,247,708 | $ 1,181 | 1,523,949 | (182,298) | (95,124) |  |  |  |
Beginning balance (in shares) at Sep. 30, 2019 | 114,899,000 | 114,899,000 |  |  |  |  |  |  |
Beginning balance at Sep. 30, 2019 | $ 1,201,998 | $ 1,149 | 1,502,949 | (191,390) | (110,710) |  |  |  |
Common stock issued for employee stock-based awards (in shares) |  | 958,000 |  |  |  |  |  |  |
Common stock issued for employee stock-based awards | 0 | $ 10 | (10) |  |  |  |  |  |
Shares surrendered by employees to pay taxes related to stock-based awards (in shares) |  | (318,000) |  |  |  |  |  |  |
Shares surrendered by employees to pay taxes related to stock-based awards | (23,571) | $ (3) | (23,568) |  |  |  |  |  |
Stock Issued During Period, Shares, Employee Stock Purchase Plans |  | 156,000 |  |  |  |  |  |  |
Stock Issued During Period, Value, Employee Stock Purchase Plan | 8,980 | $ 1 | 8,979 |  |  |  |  |  |
Compensation expense from stock-based awards | 48,420 |  | 48,420 |  |  |  |  |  |
Net income (loss) | 42,611 |  |  | 42,611 |  |  |  |  |
Stock Repurchased During Period, Value | 65,000 |  |  |  |  |  |  |  |
Unrealized loss on hedging instruments | (2,642) |  |  |  |  |  |  | (2,642) | (2,642)
Foreign currency translation adjustment | (412) |  |  |  | (412) |  |  |  |
Unrealized loss on available-for-sale securities, net of tax | (544) |  |  |  | (544) |  |  |  |
Change in pension benefits, net of tax | $ 813 |  |  |  | 813 |  |  |  |
Ending balance (in shares) at Mar. 28, 2020 | 115,695,000 | 115,695,000 |  |  |  |  |  |  |
Ending balance at Mar. 28, 2020 | $ 1,274,081 | $ 1,157 | 1,536,770 | (150,351) | (113,495) |  |  |  |
Beginning balance (in shares) at Dec. 28, 2019 |  | 115,494,000 |  |  |  |  |  |  |
Beginning balance at Dec. 28, 2019 | 1,247,817 | $ 1,155 | 1,508,030 | (157,507) | (103,861) |  |  |  |
Common stock issued for employee stock-based awards (in shares) |  | 55,000 |  |  |  |  |  |  |
Common stock issued for employee stock-based awards | 0 | $ 1 | (1) |  |  |  |  |  |
Shares surrendered by employees to pay taxes related to stock-based awards (in shares) |  | (10,000) |  |  |  |  |  |  |
Shares surrendered by employees to pay taxes related to stock-based awards | (722) | $ 0 | (722) |  |  |  |  |  |
Stock Issued During Period, Shares, Employee Stock Purchase Plans |  | 156,000 |  |  |  |  |  |  |
Stock Issued During Period, Value, Employee Stock Purchase Plan | 8,980 | $ 1 | 8,979 |  |  |  |  |  |
Compensation expense from stock-based awards | 20,484 |  | 20,484 |  |  |  |  |  |
Net income (loss) | 7,156 |  |  | 7,156 |  |  |  |  |
Unrealized loss on hedging instruments | 701 |  |  |  |  |  |  | $ 701 | $ 701
Foreign currency translation adjustment | (10,559) |  |  |  | (10,559) |  |  |  |
Unrealized loss on available-for-sale securities, net of tax | (537) |  |  |  | (537) |  |  |  |
Change in pension benefits, net of tax | $ 761 |  |  |  | 761 |  |  |  |
Ending balance (in shares) at Mar. 28, 2020 | 115,695,000 | 115,695,000 |  |  |  |  |  |  |
Ending balance at Mar. 28, 2020 | $ 1,274,081 | $ 1,157 | $ 1,536,770 | $ (150,351) | $ (113,495) |  |  |  |

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