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SHAREHOLDERS' EQUITY AND EMPLOYEE BENEFIT PLANS (Narrative) (Details) - USD ($)
$ / shares in Units, $ in Thousands, shares in Millions
3 Months Ended 6 Months Ended
Feb. 20, 2020
Dec. 12, 2019
Mar. 28, 2020
Dec. 28, 2019
Mar. 30, 2019
Dec. 29, 2018
Mar. 28, 2020
Mar. 30, 2019
Jan. 31, 2019
Jul. 10, 2018
Aug. 15, 2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                      
Description Of Maximum Percentage Of Employee Contributions and Matching Contributions Based Upon Years Of Service             employee contributions and matching Company contributions from 4% to 6%        
Stock repurchase program, authorized amount                 $ 300,000 $ 200,000 $ 100,000
Shares repurchased in period (shares)     (0.9)       (1.1)        
Value of shares acquired     $ 18,522 $ 5,369 $ 26,922 $ 25,485 $ 23,900        
Remaining repurchase authorized amount     73,300       73,300        
Cash dividends declared per share (in dollars per share) $ 0.12 $ 0.12                  
Common stock cash dividends paid     $ (7,700)       $ (15,233) $ (16,112)      
Relative Total Shareholder Return Average Stock Price Calculation Period             90 days        
Total Shareholder Return Award Performance Measurement Period             3 years        
Minimum                      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                      
Defined Contribution Plan, Employer Matching Contribution, Percent of Employees' Gross Pay             4.00%        
Share Based Compensation Arrangement By Share Based Payment Award Vesting Percentage     0.00%       0.00%        
Maximum                      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                      
Defined Contribution Plan, Employer Matching Contribution, Percent of Employees' Gross Pay             6.00%        
Share Based Compensation Arrangement By Share Based Payment Award Vesting Percentage     200.00%       200.00%        
Equity Incentive Plan 2017 [Member]                      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                      
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant     3.4       3.4