Annual report pursuant to Section 13 and 15(d)

Debt (Details)

v2.4.0.8
Debt (Details) (USD $)
In Millions, unless otherwise specified
3 Months Ended 12 Months Ended 3 Months Ended 12 Months Ended 1 Months Ended 12 Months Ended 3 Months Ended 12 Months Ended 12 Months Ended 12 Months Ended 12 Months Ended 1 Months Ended 12 Months Ended 12 Months Ended
Dec. 31, 2013
Sep. 28, 2013
Jun. 29, 2013
Mar. 30, 2013
Dec. 31, 2012
Sep. 29, 2012
Jun. 30, 2012
Mar. 31, 2012
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Jun. 29, 2013
Senior Notes Due 2016 [Member]
Dec. 31, 2013
Senior Notes Due 2016 [Member]
Dec. 31, 2012
Senior Notes Due 2016 [Member]
Dec. 31, 2013
Debentures Due 2023 [Member]
Dec. 31, 2012
Debentures Due 2023 [Member]
Dec. 31, 2013
Notes Due 2027 [Member]
Dec. 31, 2012
Notes Due 2027 [Member]
Dec. 31, 2013
Senior Notes Due 2013 [Member]
Dec. 31, 2012
Senior Notes Due 2013 [Member]
Mar. 31, 2011
Secured Asset-Based Facility [Member]
Dec. 31, 2013
Secured Asset-Based Facility [Member]
Apr. 02, 2011
Terminated Secured Asset-Based Facility [Member]
Dec. 31, 2013
Senior Notes Due 2016 [Member]
Dec. 31, 2012
Senior Notes Due 2016 [Member]
Dec. 31, 2013
Notes Due 2027 [Member]
Dec. 31, 2012
Notes Due 2027 [Member]
Dec. 31, 2013
Senior Notes Due 2021 [Member]
Dec. 31, 2012
Senior Notes Due 2021 [Member]
Dec. 31, 2013
Debentures Due 2023 [Member]
Dec. 31, 2012
Debentures Due 2023 [Member]
Dec. 31, 2012
Loan With Fond Du Lac County Economic Development Corporation Due 2021 [Member]
Dec. 31, 2013
Loan With Fond Du Lac County Economic Development Corporation Due 2021 [Member]
Dec. 31, 2012
Loan With Fond Du Lac County Economic Development Corporation Due 2021 [Member]
Dec. 31, 2013
Notes Payable Through 2022 [Member]
Dec. 31, 2012
Notes Payable Through 2022 [Member]
Dec. 31, 2013
Minimum [Member]
Secured Asset-Based Facility [Member]
Dec. 31, 2013
Maximum [Member]
Secured Asset-Based Facility [Member]
Dec. 31, 2013
Maximum [Member]
Loan With Fond Du Lac County Economic Development Corporation Due 2021 [Member]
Short-term debt [Abstract]                                                                              
Current maturities of long-term debt $ (6.4)       $ (6.5)       $ (6.4) $ (6.5)                                                          
Other short-term debt 0       1.7       0 1.7                                                          
Total short-term debt 6.4       8.2       6.4 8.2                                                          
Asset-Based Credit Facility [Abstract]                                                                              
Term of credit facility                                         5 years                                    
Maximum borrowing capacity                                           300.0 400.0                                
Borrowing base                                           294.7                                  
Available borrowing capacity                                           277.9                                  
Letters of credit outstanding                                           16.8                                  
Maximum amount of letters of credit allowed                                           125.0                                  
Facility fee                                           0.25%                             0.25% 0.625%  
LIBOR borrowing spread                                           2.25%                             2.25% 3.00%  
Leverage ratio spread                                           1.25%                             1.25% 2.00%  
Basis spread on Federal Funds Rate                                           0.50%                                  
Basis spread on one-month LIBOR                                           1.00%                                  
Fixed charge coverage ratio covenant                                           1.0                                  
Minimum remaining borrowing capacity covenant 37.5               37.5                         37.5                                  
Write-off of deferred debt issuance costs                                             1.1                                
Long-term Debt [Abstract]                                                                              
Long-term debt, gross 459.8       570.1       459.8 570.1                           0 245.7 162.7 166.0 150.0 0 103.7 108.4 41.1 36.8 41.1 6.6 8.9      
Current maturities of long-term debt (6.4)       (6.5)       (6.4) (6.5)                                                          
Long-term debt, net 453.4       563.6       453.4 563.6                                                          
Interest rate                                               11.25%   7.125%   4.625%   7.375%     2.00%            
Interest rate, maximum                                                                     5.892%        
Due date                                               2016   2027   2021   2023     2021   2022        
Discount on long-term debt                                               0 4.1 0.5 0.6     0.2 0.3 6.6 5.9 6.6          
Maturities of Long-term Debt [Abstract]                                                                              
2014 6.4               6.4                                                            
2015 5.5               5.5                                                            
2016 5.5               5.5                                                            
2017 5.6               5.6                                                            
2018 5.7               5.7                                                            
Thereafter 431.1               431.1                                                            
Total long-term debt including current maturities 459.8       570.1       459.8 570.1                           0 245.7 162.7 166.0 150.0 0 103.7 108.4 41.1 36.8 41.1 6.6 8.9      
Deferred Interest on long term debt                                                               2.7              
Annual forgiveness percent                                                                 43.00% 34.00%         43.00%
Total loan forgiveness                                                                 2.1 1.7          
Extinguishment of Debt [Abstract]                                                                              
Long-term debt repurchased                 258.0 124.2   249.8 249.8 44.0 4.8 6.0 3.4 1.2 0 73.0                                      
Loss on early extinguishment of debt $ 0.1 $ 0.3 $ 32.3 $ 0.1 $ 4.4 $ 7.5 $ 4.4 $ 0 $ 32.8 $ 16.3 $ 19.8