Goodwill and Identifiable Intangible Assets - Additional Information (Details) - USD ($) $ in Millions	1 Months Ended	12 Months Ended
	Jan. 31, 2013	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Successor [Member]
Goodwill [Line Items]
Amortization of acquired intangibles		$ 80.7	$ 83.8	$ 79.9
Goodwill and intangible asset impairment		$ 0.1	$ 0.1	$ 3.2
Predecessor [Member]
Goodwill [Line Items]
Amortization of acquired intangibles	$ 0.0
Other Intangible Assets [Member] | Predecessor [Member]
Goodwill [Line Items]
Amortization of acquired intangibles	$ 2.6
Equity Method Investee [Member]
Goodwill [Line Items]
Additional interest purchased		25.00%