Quarterly report pursuant to Section 13 or 15(d)

Earnings per Share - Earnings per Share (Parenthetical) (Details)

v3.2.0.727
Earnings per Share - Earnings per Share (Parenthetical) (Details) - shares
shares in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2015
Jun. 30, 2014
Jun. 30, 2015
Jun. 30, 2014
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]        
Anti-dilutive common stock equivalents (in shares) 113,067 116,655 114,443 386,276
7% Exchangeable Senior Subordinated Notes due 2014 [Member]        
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]        
Anti-dilutive common stock equivalents (in shares)       272,856
Interest rate on instrument   7.00%   7.00%