Quarterly report pursuant to Section 13 or 15(d)

Earnings (Loss) per Common Share (Weighted Average Shares Outstanding, Anti-dilutive) (Details)

v3.7.0.1
Earnings (Loss) per Common Share (Weighted Average Shares Outstanding, Anti-dilutive) (Details) - shares
shares in Thousands
3 Months Ended
Mar. 31, 2017
Mar. 31, 2016
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]    
Antidilutive securities excluded from computation of earnings per share 1,084 6
Derivative instrument that may be settled in cash or shares, the effect of which is anti-dilutive [Member]    
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]    
Antidilutive securities excluded from computation of earnings per share 1,057 0
Share-based compensation that may be settled in cash or shares, the effect of which is anti-dilutive [Member]    
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]    
Antidilutive securities excluded from computation of earnings per share 26 0
Shares associated with anti-dilutive unexercised stock options [Member]    
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]    
Antidilutive securities excluded from computation of earnings per share 1 6