Annual report pursuant to Section 13 and 15(d)

(Stock-based Compensation-Exercise Price Range) (Details)

v3.5.0.2
(Stock-based Compensation-Exercise Price Range) (Details)
Oct. 01, 2016
$ / shares
shares
Restricted Stock Units (RSUs) | 2010 Stock Plan | Exercise Price Range One  
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]  
Number of Units (shares) 95,000
Grant-Date Fair Value (usd per share) | $ / shares $ 10.52
Restricted Stock Units (RSUs) | 2010 Stock Plan | Exercise Price Range Two  
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]  
Number of Units (shares) 230,000
Grant-Date Fair Value (usd per share) | $ / shares $ 10.73
Performance Awards | 2010 Stock Plan | Exercise Price Range Three  
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]  
Number of Units (shares) 52,000
Grant-Date Fair Value (usd per share) | $ / shares $ 10.52
Performance Awards | 2010 Stock Plan | Exercise Price Range Four  
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]  
Number of Units (shares) 52,000
Grant-Date Fair Value (usd per share) | $ / shares $ 10.52
Performance Awards | 2010 Stock Plan | Exercise Price Range Five  
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]  
Number of Units (shares) 8,438
Grant-Date Fair Value (usd per share) | $ / shares $ 14.04
Performance Awards | 2010 Stock Plan | Exercise Price Range Seven  
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]  
Number of Units (shares) 74,100
Grant-Date Fair Value (usd per share) | $ / shares $ 14.03
Performance Awards | 2010 Stock Plan | Exercise Price Range Six  
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]  
Number of Units (shares) 74,100
Grant-Date Fair Value (usd per share) | $ / shares $ 14.03
Restricted Stock Units and Performance Stock Units | 2010 Stock Plan  
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]  
Number of Units (shares) 585,638
Stock Options | 2010 Stock Plan  
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]  
Number of Units (shares) 10,000
Stock Options | 2010 Stock Plan | Exercise Price Range Two  
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]  
Number of Units (shares) 10,000
Exercise Price (usd per share) | $ / shares $ 13.07
Grant-Date Fair Value (usd per share) | $ / shares $ 6.35
Stock Options | Option Plan  
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]  
Number of Units (shares) 86,000
Stock Options | Option Plan | Exercise Price Range Four  
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]  
Number of Units (shares) 86,000
Exercise Price (usd per share) | $ / shares $ 8.30
Grant-Date Fair Value (usd per share) | $ / shares $ 2.95