Quarterly report pursuant to Section 13 or 15(d)

LEASE OBLIGATIONS (Narrative) (Details)

v3.7.0.1
LEASE OBLIGATIONS (Narrative) (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2017
Jun. 30, 2016
Jun. 30, 2017
Jun. 30, 2016
Leases [Abstract]        
Operating lease expense $ 1.8 $ 2.2 $ 3.5 $ 4.6