日韩三级片

Quarterly report pursuant to Section 13 or 15(d)

SEGMENT REPORTING SEGMENT REPORTING (Summary of Assets by Segment) (Details)

v3.10.0.1
SEGMENT REPORTING SEGMENT REPORTING (Summary of Assets by Segment) (Details) - USD ($)
$ in Millions
Jun. 30, 2018
Jan. 01, 2018
Dec. 31, 2017
Segment Reporting Information [Line Items] 听 听 听
Assets $ 3,051.5 $ 2,990.2 $ 2,953.4
U.S. Iron Ore [Member] 听 听 听
Segment Reporting Information [Line Items] 听 听 听
Assets 1,822.8 听 1,500.6
Corporate Segment [Member] 听 听 听
Segment Reporting Information [Line Items] 听 听 听
Assets 1,183.4 听 1,314.0
Discontinued 日韩三级片, Held-for-sale [Member] 听 听 听
Segment Reporting Information [Line Items] 听 听 听
Assets $ 45.3 听 $ 138.8