v3.5.0.1
Dispositions Acquisitions (Details) - USD ($)
$ in Thousands
3 Months Ended 12 Months Ended
Mar. 31, 2016
Dec. 31, 2015
Sep. 30, 2015
Jun. 30, 2015
Mar. 31, 2015
Dec. 31, 2014
Sep. 30, 2014
Jun. 30, 2014
Mar. 31, 2016
Mar. 31, 2015
Mar. 31, 2014
Business Acquisition                      
Operating revenues $ 49,857 $ 55,144 $ 61,932 $ 56,108 $ 60,225 $ 60,145 $ 61,472 $ 63,338 $ 223,041 $ 245,180 $ 287,346
Net Income (Loss) Attributable to Parent $ (2,605) $ (2,315) $ (2,186) $ 24,070 $ 4,943 $ 9,960 $ (30,062) $ (11,968) $ 16,964 $ (27,127) $ (54,319)