Long-Term Debt Senior Subordinated Notes (Details) (USD $)	12 Months Ended				3 Months Ended				12 Months Ended									1 Months Ended		12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Jul. 02, 2013	Mar. 31, 2014 Subordinated Debt [Member]	Dec. 31, 2013 Subordinated Debt [Member]	Sep. 30, 2013 Subordinated Debt [Member]	Mar. 31, 2013 Subordinated Debt [Member]	Dec. 31, 2013 Subordinated Debt [Member]	Dec. 31, 2012 Subordinated Debt [Member]	Feb. 21, 2014 Subordinated Debt [Member]	Jan. 22, 2014 Subordinated Debt [Member]	Oct. 18, 2013 Subordinated Debt [Member]	Aug. 01, 2013 Subordinated Debt [Member]	Mar. 08, 2013 Subordinated Debt [Member]	Dec. 21, 2012 Subordinated Debt [Member]	Mar. 10, 2010 Subordinated Debt [Member]	Jul. 31, 2013 Term Loan [Member]	Apr. 30, 2013 Term Loan [Member]	Dec. 31, 2013 Term Loan [Member]	Dec. 31, 2012 Term Loan [Member]	Aug. 01, 2013 IPO Proceeds [Member] Subordinated Debt [Member]	Aug. 01, 2013 Term Loan Incremental Borrowings [Member] Subordinated Debt [Member]
Debt Instrument [Line Items]
Long-term debt, stated interest rate						12.535%			12.535%
Debt, long-term and short-term	$ 3,251,400,000					$ 92,500,000			$ 92,500,000	$ 621,500,000	$ 42,500,000									$ 1,528,900,000	$ 1,339,500,000
Debt Instrument, Repurchased Face Amount											20,000,000	30,000,000	155,000,000	324,000,000	50,000,000	100,000,000	28,500,000					146,000,000	178,000,000
Debt Instrument, Face Amount																		190,000,000
Proceeds from issuance of long-term debt	1,535,200,000	135,700,000	1,175,000,000																1,350,000,000
Redemption Premium, percentage of par value											104.178%	104.178%	104.178%	106.268%	106.268%	106.268%
Proceeds from exercise in full of overallotment option				56,000,000
Gains (Losses) on Extinguishment of Debt	64,000,000	17,200,000	118,900,000		2,700,000	8,500,000		3,900,000	24,600,000	7,800,000										10,300,000
Extinguishment of Debt, Fees Paid to Lenders											2,100,000		6,500,000	20,300,000	3,100,000	6,300,000
Write off of Deferred Debt Issuance Cost	20,100,000	3,000,000			600,000	2,000,000	4,300,000	800,000		1,500,000
Extinguishment of Debt, Accrued Interest Paid to Lenders											$ 900,000	$ 1,000,000	$ 200,000	$ 12,000,000	$ 2,500,000	$ 2,300,000