Quarterly report pursuant to Section 13 or 15(d)

Dividends (Details)

v3.3.1.900
Dividends (Details)
$ / shares in Units, $ in Millions
9 Months Ended 12 Months Ended 24 Months Ended 51 Months Ended
Feb. 06, 2013
item
$ / shares
May. 07, 2014
item
$ / shares
Feb. 09, 2012
item
$ / shares
May. 07, 2014
item
$ / shares
Sep. 30, 2014
USD ($)
Dividends [Abstract]          
Number of dividends paid | item 4 5 9 18  
Dividends payable, amount per share | $ / shares $ 0.06 $ 0.07 $ 0.05 $ 0.07  
Cumulative dividends paid | $         $ 29.4