CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
CONSOLIDATED STATEMENT OF OPERATIONS [Abstract]
Net income (loss)	$ (8.3)	$ 54.4	$ 42.6
Other comprehensive income (loss):
Foreign currency translation	5.0	(2.8)	(2.6)
Total comprehensive income (loss)	$ (3.3)	$ 51.6	$ 40.0