Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Millions	Dec. 31, 2015	Dec. 31, 2014
Statement of Financial Position [Abstract]
Accounts receivable allowances	$ 16.9	$ 9.8
Property and equipment, accumulated depreciation	209.3	47.3
Identifiable intangible assets, accumulated amortization	$ 224.5	$ 74.6
Preferred stock, par value (in usd per share)	$ 0.001	$ 0.001
Preferred stock, shares authorized	10,000,000	10,000,000
Preferred stock, shares issued	72,885	73,335
Preferred stock, shares outstanding	72,885	73,335
Common stock, par value (in usd per share)	$ 0.001	$ 0.001
Common stock, shares authorized	300,000,000	150,000,000
Common stock, shares issued	109,523,493	77,421,683
Common stock, shares outstanding	109,523,493	77,421,683