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Stockholders' Equity - Additional Information (Detail) - USD ($)
$ / shares in Units, $ in Thousands
1 Months Ended 12 Months Ended
Sep. 27, 2016
Sep. 21, 2016
Aug. 31, 2016
Jun. 30, 2018
Jul. 01, 2017
Jul. 02, 2016
Feb. 19, 2015
Class of Stock [Line Items]              
Common stock, shares authorized       275,000,000.0 275,000,000    
Common stock, par value (in usd per share)   $ 0.01   $ 0.01 $ 0.01    
Offering price, per share (in usd per share)   $ 8.35          
Proceeds from the exercise of stock options $ 135,200     $ 0 $ 135,153 $ 0  
Preferred stock, shares authorized       1,000,000 1,000,000    
Common Stock              
Class of Stock [Line Items]              
Issuance of common stock in connection with public offering (in shares)   15,000,000.0     17,250,000    
Shares issued in connection with cancellation of debt (shares)     34,659,972        
Underwriters 30-day Option | Common Stock              
Class of Stock [Line Items]              
Issuance of common stock in connection with public offering (in shares)   2,250,000          
Convertible Notes | 6.00% Convertible Senior Notes due 2020              
Class of Stock [Line Items]              
Stated interest rate (percent)     6.00%       6.00%