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Consolidated Statement of Stockholder's Equity Statement - USD ($) shares in Thousands, $ in Thousands | Total | Common Stock | Additional Paid-in Capital | Accumulated Deficit | Accumulated Other Comprehensive Loss | Net Investment Hedging | Net Investment Hedging Accumulated Other Comprehensive Loss | Cash Flow Hedging | Cash Flow Hedging Accumulated Other Comprehensive Loss
--- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Cumulative Effect of New Accounting Principle in Period of Adoption | Accounting Standards Update 2016-09 | $ 125 |  | $ 681 | $ (556) |  |  |  |  |
Beginning balance (in shares) at Sep. 30, 2017 |  | 115,333 |  |  |  |  |  |  |
Beginning balance at Sep. 30, 2017 | 885,436 | $ 1,153 | 1,609,030 | (650,840) | $ (73,907) |  |  |  |
Common stock issued for employee stock-based awards | 0 | $ 18 | (18) |  |  |  |  |  |
Common stock issued for employee stock-based awards (in shares) |  | 1,805 |  |  |  |  |  |  |
Shares surrendered by employees to pay taxes related to stock-based awards | (44,797) | $ (6) | (44,791) |  |  |  |  |  |
Shares surrendered by employees to pay taxes related to stock-based awards (in shares) |  | (658) |  |  |  |  |  |  |
Common stock issued for employee stock purchase plan (in shares) |  | 158 |  |  |  |  |  |  |
Common stock issued for employee stock purchase plan | 7,472 | $ 1 | 7,471 |  |  |  |  |  |
Compensation expense from stock-based awards | 52,015 |  | 52,015 |  |  |  |  |  |
Net income (loss) | 38,796 |  |  | 38,796 |  |  |  |  |
Repurchases of common stock (in shares) |  | (1,147) |  |  |  |  |  |  |
Repurchases of common stock | (100,000) | $ (11) | (99,989) |  |  |  |  |  |
Unrealized gain (loss) on hedging instruments, net of tax | 3,277 |  |  |  |  |  |  | $ 3,277 | $ 3,277
Foreign currency translation adjustment | (8,859) |  |  |  | (8,859) |  |  |  |
Unrealized loss on available-for-sale securities, net of tax | (379) |  |  |  | (379) |  |  |  |
Change in pension benefits, net of tax | 1,299 |  |  |  | 1,299 |  |  |  |
Ending balance (in shares) at Jun. 30, 2018 |  | 115,491 |  |  |  |  |  |  |
Ending balance at Jun. 30, 2018 | 834,385 | $ 1,155 | 1,524,399 | (612,600) | (78,569) |  |  |  |
Beginning balance (in shares) at Mar. 31, 2018 |  | 116,338 |  |  |  |  |  |  |
Beginning balance at Mar. 31, 2018 | 927,724 | $ 1,163 | 1,618,588 | (629,597) | (62,430) |  |  |  |
Common stock issued for employee stock-based awards | 0 | $ 4 | (4) |  |  |  |  |  |
Common stock issued for employee stock-based awards (in shares) |  | 428 |  |  |  |  |  |  |
Shares surrendered by employees to pay taxes related to stock-based awards | (10,855) | $ (1) | (10,854) |  |  |  |  |  |
Shares surrendered by employees to pay taxes related to stock-based awards (in shares) |  | (128) |  |  |  |  |  |  |
Compensation expense from stock-based awards | 16,658 |  | 16,658 |  |  |  |  |  |
Net income (loss) | 16,997 |  |  | 16,997 |  |  |  |  |
Repurchases of common stock (in shares) |  | (1,147) |  |  |  |  |  |  |
Repurchases of common stock | (100,000) | $ (11) | (99,989) |  |  |  |  |  |
Unrealized gain (loss) on hedging instruments, net of tax | 4,152 |  |  |  |  |  |  | 4,152 | 4,152
Foreign currency translation adjustment | (21,628) |  |  |  | (21,628) |  |  |  |
Unrealized loss on available-for-sale securities, net of tax | 67 |  |  |  | 67 |  |  |  |
Change in pension benefits, net of tax | 1,270 |  |  |  | 1,270 |  |  |  |
Ending balance (in shares) at Jun. 30, 2018 |  | 115,491 |  |  |  |  |  |  |
Ending balance at Jun. 30, 2018 | 834,385 | $ 1,155 | 1,524,399 | (612,600) | (78,569) |  |  |  |
Cumulative Effect of New Accounting Principle in Period of Adoption | Accounting Standards Update 2016-16 | 72,261 |  |  | 72,261 |  |  |  |  |
Cumulative Effect of New Accounting Principle in Period of Adoption | Accounting Standards Update 2014-09 | $ 367,378 |  |  | 367,378 |  |  |  |  |
Beginning balance (in shares) at Sep. 30, 2018 | 117,981 | 117,981 |  |  |  |  |  |  |
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 | 0 | $ 15 | (15) |  |  |  |  |  |
Common stock issued for employee stock-based awards (in shares) |  | 1,479 |  |  |  |  |  |  |
Shares surrendered by employees to pay taxes related to stock-based awards | (44,191) | $ (5) | (44,186) |  |  |  |  |  |
Shares surrendered by employees to pay taxes related to stock-based awards (in shares) |  | (501) |  |  |  |  |  |  |
Common stock issued for employee stock purchase plan (in shares) |  | 122 |  |  |  |  |  |  |
Common stock issued for employee stock purchase plan | 8,798 | $ 1 | 8,797 |  |  |  |  |  |
Common stock issued | (140) |  | (140) |  |  |  |  |  |
Compensation expense from stock-based awards | 71,608 |  | 71,608 |  |  |  |  |  |
Net income (loss) | (37,286) |  |  | (37,286) |  |  |  |  |
Repurchases of common stock (in shares) |  | (3,970) |  |  |  |  |  |  |
Repurchases of common stock | (89,995) | $ (40) | (89,955) |  |  |  |  |  |
Unrealized gain (loss) on hedging instruments, net of tax | (2,367) |  |  |  |  | $ (1,982) | $ (1,982) | $ (385) | $ (385)
Foreign currency translation adjustment | (7,209) |  |  |  | (7,209) |  |  |  |
Unrealized loss on available-for-sale securities, net of tax | 477 |  |  |  | 477 |  |  |  |
Change in pension benefits, net of tax | $ 1,672 |  |  |  | 1,672 |  |  |  |
Ending balance (in shares) at Jun. 29, 2019 | 115,111 | 115,111 |  |  |  |  |  |  |
Ending balance at Jun. 29, 2019 | $ 1,215,595 | $ 1,151 | 1,504,512 | (197,056) | (93,012) |  |  |  |
Beginning balance (in shares) at Mar. 30, 2019 |  | 118,098 |  |  |  |  |  |  |
Beginning balance at Mar. 30, 2019 | 1,247,708 | $ 1,181 | 1,523,949 | (182,298) | (95,124) |  |  |  |
Common stock issued for employee stock-based awards | 0 | $ 4 | (4) |  |  |  |  |  |
Common stock issued for employee stock-based awards (in shares) |  | 371 |  |  |  |  |  |  |
Shares surrendered by employees to pay taxes related to stock-based awards | (9,700) | $ (1) | (9,699) |  |  |  |  |  |
Shares surrendered by employees to pay taxes related to stock-based awards (in shares) |  | (113) |  |  |  |  |  |  |
Compensation expense from stock-based awards | 15,234 |  | 15,234 |  |  |  |  |  |
Net income (loss) | (14,758) |  |  | (14,758) |  |  |  |  |
Repurchases of common stock (in shares) |  | (3,245) |  |  |  |  |  |  |
Repurchases of common stock | (25,001) | $ (33) | (24,968) |  |  |  |  |  |
Unrealized gain (loss) on hedging instruments, net of tax | (2,644) |  |  |  |  | $ (2,644) | $ (2,644) |  |
Foreign currency translation adjustment | 4,393 |  |  |  | 4,393 |  |  |  |
Unrealized loss on available-for-sale securities, net of tax | 175 |  |  |  | 175 |  |  |  |
Change in pension benefits, net of tax | $ 188 |  |  |  | 188 |  |  |  |
Ending balance (in shares) at Jun. 29, 2019 | 115,111 | 115,111 |  |  |  |  |  |  |
Ending balance at Jun. 29, 2019 | $ 1,215,595 | $ 1,151 | $ 1,504,512 | $ (197,056) | $ (93,012) |  |  |  |

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