Annual report pursuant to Section 13 and 15(d)

Consolidated Balance Sheets (Parenthetical)

v3.3.1.900
Consolidated Balance Sheets (Parenthetical) - USD ($)
$ in Millions
Dec. 31, 2015
Dec. 31, 2014
Consolidated Balance Sheets [Abstract]    
Allowance for accounts with partners   $ 7.6
Allowance for other receivable   $ 2.4
Allowance for value added tax receivable $ 4.2  
Preferred stock, shares issued 0 0
Preferred stock, shares authorized 500,000 500,000
Preferred stock, par value $ 25 $ 25
Common stock, par value $ 0.10 $ 0.10
Common stock, shares authorized 100,000,000 100,000,000
Common stock, shares issued 66,041,338 65,194,828