XML 97 R60.htm IDEA: XBRL DOCUMENT v3.8.0.1
Common Stock and Warrants (Narrative) (Details) - USD ($)
$ / shares in Units, $ in Thousands
 1 Months Ended 4 Months Ended 12 Months Ended
Sep. 11, 2017
Mar. 18, 2015
Jul. 31, 2015
Jan. 31, 2014
Nov. 30, 2016
Dec. 29, 2017
Dec. 30, 2016
Jan. 01, 2016
Class of Warrant or Right [Line Items]                
Increase to shareholder's equity             $ 253,080  
Loss on extinguishment of debt           $ 6,239 13,901 $ 0
Public offering of common stock (in shares)     28,750,000          
Share price (in dollars per share)     $ 5.40          
Net proceeds from public offering     $ 145,600     $ 0 0 $ 145,649
2014 Warrants [Member]                
Class of Warrant or Right [Line Items]                
Warrant period   2 years   2 years        
Warrants outstanding (in shares) 0     1,000,000        
Exercise price per share (in dollars per share)   $ 3.445   $ 9.70        
Fair Value of warrants   $ 1,500            
Issuance of common stock on warrant exercise (in shares) 877,451              
Shares withheld for exercise of warrants (in shares) 122,549              
Over-allotment option [Member]                
Class of Warrant or Right [Line Items]                
Public offering of common stock (in shares)     3,750,000          
Senior subordinated notes [Member] | 2019 Notes [Member]                
Class of Warrant or Right [Line Items]                
Number of shares issued pursuant to conversion (in shares)         54,009,279      
Aggregate principal amount of debt converted         $ 286,900      
Increase to shareholder's equity         592,700      
Loss on extinguishment of debt         $ 13,900   $ 13,901