Summarized Balance Sheet Information of Reportable Segments and Consolidated (Detail) - USD ($) $ in Millions	Mar. 31, 2017	Dec. 31, 2016	Mar. 31, 2016	Dec. 31, 2015
ASSETS
Assets	$ 663.6	$ 645.5
Cash and cash equivalents	18.5	27.2	$ 37.0
Other unallocated assets	4.7	5.8
LIABILITIES
liabilities	615.6	586.1
Long-term debt	380.2	356.5
Common stock warrant liability	1.9	4.4	$ 7.5	$ 6.9
Deferred income taxes, net	2.5	2.5
Other unallocated liabilities	4.0	3.8
Corporate and Other
ASSETS
Cash and cash equivalents	6.7	10.0
Operating Segments | RANA
ASSETS
Assets	445.0	431.8
Cash and cash equivalents	7.4	11.5
LIABILITIES
liabilities	121.0	119.9
Operating Segments | RAEU
ASSETS
Assets	207.2	197.9
Cash and cash equivalents	4.4	5.7
LIABILITIES
liabilities	$ 106.0	$ 99.0