Annual report pursuant to Section 13 and 15(d)

Earnings (Loss) per Common Share Earnings (Loss) Per Common Share (Weighted Average Shares outstanding which are anti-dilutive) (Details)

v3.6.0.2
Earnings (Loss) per Common Share Earnings (Loss) Per Common Share (Weighted Average Shares outstanding which are anti-dilutive) (Details) - shares
shares in Thousands
12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]      
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount 3 858 55
Stock Appreciation Rights (SARs)      
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]      
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount 0 724 0
Stock Options      
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]      
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount 3 108 29
Stock Compensation Plan [Member]      
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]      
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount 0 26 26