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Consolidated Statements of Changes in Stockholders' Equity - USD ($) shares in Thousands, $ in Thousands | Total | Common Shares | Additional Paid-In Capital | Retained Earnings | Accumulated Other Comprehensive Income (Loss) | Treasury Stock
--- | --- | --- | --- | --- | --- | ---
Beginning balance (in shares) at Aug. 26, 2017 |  | 51,776 |  |  |  | 20,183
Balance at beginning of year at Aug. 26, 2017 | $ 441,674 | $ 25,888 | $ 80,401 | $ 679,138 | $ (1,023) | $ (342,730)
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |
Stock-based compensation, net of forfeitures | 7,484 |  | 7,406 |  |  | $ 78
Stock-based compensation, net of forfeitures (in shares) |  |  |  |  |  | 5
Issuance of stock | 175 |  | (1,584) |  |  | $ 1,759
Issuance of stock (in shares) |  |  |  |  |  | 104
Repurchase of common stock (in shares) |  |  |  |  |  | (169)
Repurchase of common stock | (6,481) |  |  |  |  | $ (6,481)
Common stock dividends | (12,738) |  |  | (12,738) |  |
Actuarial loss, net of tax | 27 |  |  |  | 27 |
Change in fair value of interest rate swap, net of tax | 1,947 |  |  |  | 1,947 |
Reclassification of tax effects | 0 |  |  | 59 | (59) |
Net income | 102,357 |  |  | 102,357 |  |
Ending balance (in shares) at Aug. 25, 2018 |  | 51,776 |  |  |  | 20,243
Balance at end of year at Aug. 25, 2018 | 534,445 | $ 25,888 | 86,223 | 768,816 | 892 | $ (347,374)
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |
Stock-based compensation, net of forfeitures | 7,075 |  | 6,993 |  |  | $ 82
Stock-based compensation, net of forfeitures (in shares) |  |  |  |  |  | 5
Issuance of stock | 2,176 |  | (2,031) |  |  | $ 4,207
Issuance of stock (in shares) |  |  |  |  |  | 244
Repurchase of common stock (in shares) |  |  |  |  |  | (268)
Repurchase of common stock | (8,171) |  |  |  |  | $ (8,171)
Common stock dividends | (13,728) |  |  | (13,728) |  |
Actuarial loss, net of tax | 32 |  |  |  | 32 |
Change in fair value of interest rate swap, net of tax | (1,415) |  |  |  | (1,415) |
Net income | 111,798 |  |  | 111,798 |  |
Ending balance (in shares) at Aug. 31, 2019 |  | 51,776 |  |  |  | 20,262
Balance at end of year at Aug. 31, 2019 | 632,212 | $ 25,888 | 91,185 | 866,886 | (491) | $ (351,256)
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |
Stock-based compensation, net of forfeitures | 6,475 |  | 6,446 |  |  | $ 29
Stock-based compensation, net of forfeitures (in shares) |  |  |  |  |  | 0
Issuance of stock | 1,200 |  | (1,813) |  |  | $ 3,013
Issuance of stock (in shares) |  |  |  |  |  | 174
Issuance of stock for acquisition (in shares) |  |  |  |  |  | 2,000
Issuance of stock for acquisition | 92,572 |  | 57,811 |  |  | $ 34,761
Repurchase of common stock (in shares) |  |  |  |  |  | (45)
Repurchase of common stock | (1,844) |  |  |  |  | $ (1,844)
Common stock dividends | (14,718) |  |  | (14,718) |  |
Actuarial loss, net of tax | 33 |  |  |  | 33 |
Change in fair value of interest rate swap, net of tax | (68) |  |  |  | (68) |
Equity component of convertible senior notes and offering costs, net of tax of $20,840 | 61,335 |  | 61,335 |  |  |
Convertible note hedge purchase, net of tax of $17,417 | (53,383) |  | (53,383) |  |  |
Issuance of warrants | 42,210 |  | 42,210 |  |  |
Net income | 61,442 |  |  | 61,442 |  |
Ending balance (in shares) at Aug. 29, 2020 |  | 51,776 |  |  |  | 18,133
Balance at end of year at Aug. 29, 2020 | $ 827,466 | $ 25,888 | $ 203,791 | $ 913,610 | $ (526) | $ (315,297)

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