FAIR VALUE MEASUREMENTS

3 Months Ended

Mar. 31, 2013

Fair Value Disclosures [Abstract]

Fair Value Measurements

FAIR VALUE MEASUREMENTS

The Company’s population of financial assets and liabilities subject to fair value measurements as of March 31, 2013 and December 31, 2012 is as follows:

			Fair Value Measurements as of
	Fair Value as of		March 31, 2013
			Using Fair Value Hierarchy
	March 31, 2013		Level 1		Level 2		Level 3
Noncontrolling interest put	$	20.9	$	—	$	20.9	$	—

			Fair Value Measurements as of
	Fair Value as of		December 31, 2012
			Using Fair Value Hierarchy
	December 31, 2012		Level 1		Level 2		Level 3
Noncontrolling interest put	$	20.7	$	—	$	20.7	$	—

The noncontrolling interest put is valued at its contractually determined value, which approximates fair value.

The carrying amounts of cash and cash equivalents, accounts receivable, income taxes receivable, and accounts payable are considered to be representative of their respective fair values due to their short-term nature. The fair market value of the zero-coupon subordinated notes, based on market pricing, was approximately $140.0 and $179.1 as of March 31, 2013 and December 31, 2012, respectively. The fair market value of the senior notes, based on market pricing, was approximately $2,293.3 and $2,720.5 as of March 31, 2013 and December 31, 2012, respectively. The Company's note and debt instruments are considered level 2 instruments, as the fair market values of these instruments are determined using other observable inputs.