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CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($)
$ in Thousands
Jan. 26, 2019
Jul. 28, 2018
Statement of Financial Position [Abstract]    
Accounts receivable, allowance (in dollars) $ 15,278 $ 15,996
Intangible assets, accumulated amortization (in dollars) $ 88,945 $ 64,438
Preferred stock, par value (in dollars per share) $ 0.01 $ 0.01
Preferred stock, authorized shares 5,000,000 5,000,000
Preferred stock, issued shares 0 0
Preferred stock, outstanding shares 0 0
Common stock, par value (in dollars per share) $ 0.01 $ 0.01
Common stock, authorized shares 100,000,000 100,000,000
Common stock, issued shares 51,433,000 51,025,000
Common stock, outstanding shares 50,818,000 50,411,000