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Share-Based Compensation - Narrative (Details) (USD $)
0 Months Ended 3 Months Ended 6 Months Ended 1 Months Ended 3 Months Ended 6 Months Ended 3 Months Ended 6 Months Ended 3 Months Ended 6 Months Ended 3 Months Ended 6 Months Ended
Jan. 24, 2014
Jun. 30, 2014
Jun. 30, 2013
Jun. 30, 2014
Jun. 30, 2013
Feb. 28, 2014
Restricted Stock (RSU)
Feb. 28, 2013
Restricted Stock (RSU)
Jun. 30, 2014
Restricted Stock (RSU)
Dec. 31, 2013
Restricted Stock (RSU)
Jun. 30, 2014
Performance unit incentive plan (PUP)
Jun. 30, 2013
Performance unit incentive plan (PUP)
Jun. 30, 2014
Performance unit incentive plan (PUP)
Jun. 30, 2013
Performance unit incentive plan (PUP)
Jun. 30, 2014
Restricted Stock
Jun. 30, 2014
Restricted Stock Units and Performance Based Restricted Stock Units
Jun. 30, 2013
Restricted Stock Units and Performance Based Restricted Stock Units
Jun. 30, 2014
Restricted Stock Units and Performance Based Restricted Stock Units
Jun. 30, 2013
Restricted Stock Units and Performance Based Restricted Stock Units
Jun. 30, 2014
Employee Stock Option [Member]
Jun. 30, 2013
Employee Stock Option [Member]
Jun. 30, 2014
Employee Stock Option [Member]
Jun. 30, 2013
Employee Stock Option [Member]
Jun. 30, 2014
Restructuring Charges
Jun. 30, 2014
Restructuring Charges
Jun. 30, 2014
Performance unit incentive plan (PUP)
Dec. 31, 2013
Performance unit incentive plan (PUP)
Share Based Compensation (Textual) [Abstract]                                                    
Share-based compensation before income tax benefit   $ (1,112,000) $ (548,000) $ (1,503,000) $ (2,367,000)         $ (326,000) $ 339,000 $ (95,000) $ (524,000)   $ (27,000) $ 66,000 $ 5,000 $ (101,000) $ 0 $ (6,000) $ 0 $ (22,000) $ (200,000) $ 100,000    
Common Stock, Dividends, Per Share, Declared $ 1.50 $ 0.1 $ 0.10 $ 1.70 $ 0.2                                          
Dividends, Common Stock 30,500,000                                                  
Unamortized cost                             3,600,000   3,600,000   0   0          
Recognition Period of Unrecognized cost                           2 years                        
Repurchase of Common Stock for Employee Tax Withholding Obligations amount, shares       44,806 47,160                                          
Repurchase of Common Stock for Employee Tax Withholding Obligations amount       1,000,000 1,300,000                                          
Shares Available for Grant   915,868   915,868                                            
Liability awards recorded                                                 3,000,000 5,900,000
Payments To Employees           200,000 300,000         2,900,000 0                          
Liabilities related to restricted stock               $ 400,000 $ 700,000