Quarterly report pursuant to Section 13 or 15(d)

SUBSEQUENT EVENT (Subsequent Event)(Details)

SUBSEQUENT EVENT (Subsequent Event)(Details) - Subsequent Event [Member]
$ in Millions
1 Months Ended
May 31, 2018
USD ($)
Subsequent Event [Line Items]  
Ownership percentage of a nonconsolidated affiliate 50.00%
Payment for a nonconsolidated affiliate $ 34.8
Amount for the future right to acquire additional interest in a business $ 0.2
Additional interest that may be acquired 1.00%