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Consolidated Statements of Changes in Stockholders' Equity - USD ($) shares in Thousands, $ in Thousands | Total | Common Shares [Member] | Additional Paid-In Capital (APIC) [Member] | Retained Earnings [Member] | Accumulated Other Comprehensive Income [Member] | Treasury Stock [Member]
--- | --- | --- | --- | --- | --- | ---
Beginning balance at Aug. 27, 2016 | $ 268,359 | $ 25,888 | $ 32,717 | $ 620,546 | $ 10,975 | $ (421,767)
Beginning balance (in shares) at Aug. 27, 2016 |  | 51,776 |  |  |  | (24,875)
Stock-based compensation, net of forfeitures | 2,908 |  | 2,830 |  |  | $ 78
Stock-based compensation, net of forfeitures (in shares) |  |  |  |  |  | 5
Issuance of restricted stock | 808 |  | (1,821) |  |  | $ 2,629
Issuance of restricted stock (in shares) |  |  |  |  |  | 155
Issuance of stock for acquisition | 124,066 |  | 46,205 |  |  | $ 77,861
Issuance of stock for acquisition (in shares) |  |  |  |  |  | 4,586
Creation/utilization of APIC pool due to stock award | 470 |  | 470 |  |  |
Repurchase of common stock | (1,531) |  |  |  |  | $ (1,531)
Repurchase of common stock (in shares) |  |  |  |  |  | (54)
Cash dividends paid on common stock | (12,738) |  |  | (12,738) |  |
Actuarial loss, net of tax | (15,387) |  |  |  | (15,387) |
Plan amendment, net of tax | 3,903 |  |  |  | 3,903 |
Change in fair value of interest rate swap, net of tax | (514) |  |  |  | (514) |
Net income | 71,330 |  |  | 71,330 |  |
Ending balance at Aug. 26, 2017 | 441,674 | $ 25,888 | 80,401 | 679,138 | (1,023) | $ (342,730)
Ending balance (in shares) at Aug. 26, 2017 |  | 51,776 |  |  |  | (20,183)
Stock-based compensation, net of forfeitures | 7,484 |  | 7,406 |  |  | $ 78
Stock-based compensation, net of forfeitures (in shares) |  |  |  |  |  | 5
Issuance of restricted stock | 175 |  | (1,584) |  |  | $ 1,759
Issuance of restricted stock (in shares) |  |  |  |  |  | 104
Repurchase of common stock | (6,481) |  |  |  |  | $ (6,481)
Repurchase of common stock (in shares) |  |  |  |  |  | (169)
Cash dividends paid on common stock | (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 at Aug. 25, 2018 | 534,445 | $ 25,888 | 86,223 | 768,816 | 892 | $ (347,374)
Ending balance (in shares) at Aug. 25, 2018 |  | 51,776 |  |  |  | (20,243)
Stock-based compensation, net of forfeitures | 7,075 |  | 6,993 |  |  | $ 82
Stock-based compensation, net of forfeitures (in shares) |  |  |  |  |  | 5
Issuance of restricted stock | 2,176 |  | (2,031) |  |  | $ 4,207
Issuance of restricted stock (in shares) |  |  |  |  |  | 244
Repurchase of common stock | (8,171) |  |  |  |  | $ (8,171)
Repurchase of common stock (in shares) |  |  |  |  |  | (268)
Cash dividends paid on common stock | (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 at Aug. 31, 2019 | $ 632,212 | $ 25,888 | $ 91,185 | $ 866,886 | $ (491) | $ (351,256)
Ending balance (in shares) at Aug. 31, 2019 |  | 51,776 |  |  |  | (20,262)

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