Debt (Details) (USD $)	9 Months Ended		0 Months Ended			0 Months Ended					1 Months Ended	9 Months Ended					0 Months Ended	1 Months Ended	9 Months Ended	1 Months Ended						0 Months Ended	9 Months Ended	0 Months Ended
	Sep. 30, 2013	Dec. 31, 2012	Jul. 23, 2013 2011 Credit Agreement	Jul. 23, 2013 2011 Credit Agreement Minimum	Jul. 23, 2013 2011 Credit Agreement Maximum	Sep. 27, 2013 2011 term loan A	Sep. 30, 2013 2011 term loan A	Dec. 31, 2012 2011 term loan A	Sep. 30, 2013 2011 term loan B	Dec. 31, 2012 2011 term loan B	Mar. 31, 2013 Term Loan A and Term Loan B	Sep. 30, 2013 Revolving Credit Facility	Sep. 30, 2013 Revolving Credit Facility Minimum	Sep. 30, 2013 Revolving Credit Facility Maximum	Sep. 30, 2013 9.875% senior notes	Dec. 31, 2012 9.875% senior notes	Mar. 27, 2013 8.50% senior notes	Mar. 31, 2013 8.50% senior notes	Sep. 30, 2013 8.50% senior notes	Mar. 31, 2013 8.50% senior notes Prior to April 15, 2016	Mar. 31, 2013 8.50% senior notes Prior to April 15, 2017	Mar. 31, 2013 8.50% senior notes During the twelve months commencing April 15, 2017	Mar. 31, 2013 8.50% senior notes During the twelve months commencing April 15, 2018	Mar. 31, 2013 8.50% senior notes Period commencing April 15, 2019	Mar. 31, 2013 8.50% senior notes Maximum Prior to April 15, 2016	Sep. 27, 2013 9.50% senior secured notes due 2019	Sep. 30, 2013 9.50% senior secured notes due 2019	Sep. 27, 2013 9.50% senior secured notes due 2019 Prior to October 15, 2015	Sep. 27, 2013 9.50% senior secured notes due 2019 Prior to October 15, 2016	Sep. 27, 2013 9.50% senior secured notes due 2019 During the twelve months commencing October 15, 2016	Sep. 27, 2013 9.50% senior secured notes due 2019 During the twelve months commencing October 15, 2017	Sep. 27, 2013 9.50% senior secured notes due 2019 Period commencing October15, 2018	Sep. 27, 2013 9.50% senior secured notes due 2019 Maximum Prior to October 15, 2015	Sep. 30, 2013 Other	Dec. 31, 2012 Other
Debt instrument
Total debt	$ 2,782,560,000	$ 2,416,165,000					$ 400,306,000	$ 756,974,000	$ 968,100,000	$ 1,127,770,000					$ 496,733,000	$ 496,510,000			$ 450,000,000								$ 447,413,000								$ 34,911,000
Less current debt	(12,179,000)	(18,793,000)
Total long term debt	2,770,381,000	2,397,372,000
Weighted average stated interest rate (as a percent)							5.74%		6.75%						9.88%				8.50%								9.50%
Interest rate (as a percent)															9.875%			8.50%	8.50%								9.50%
Aggregate principal amount							406,600,000		978,200,000						500,000,000											450,000,000
Debt agreements
Debt instrument, description of variable rate basis												LIBOR or CDOR
Basis spread on variable rate (as a percent)													4.50%	5.50%
Commitment fee on the unused portion (as a percent)												0.50%
Debt repayment schedule, excluding interest
2013	4,899,000																																	4,899,000
2014	10,090,000																																	10,090,000
2015	310,870,000						305,941,000																											4,929,000
2016	100,715,000						100,625,000																											90,000
Thereafter	2,378,178,000								978,178,000						500,000,000										450,000,000		450,000,000
Debt issued																		450,000,000								450,000,000
Proceeds from debt	897,412,000																									245,700,000
Extinguishment of debt						250,000,000					250,000,000
Capitalized debt issuance costs expensed						5,200,000											6,000,000
Gain on partial extinguishment of debt						4,300,000
Aggregate principal of debt redeemed (as a percent)																									35.00%								35.00%
Redemption price of debt instrument (as a percent)																			101.00%	108.50%	100.00%	104.25%	102.125%	100.00%			101.00%	109.50%	100.00%	107.125%	102.375%	100.00%
Increase in interest margin from existing levels (as a percent)			1.00%
Additional minimum liquidity covenant amount			225,000,000
Senior secured leverage ratio (as a percent)				5.50
Additional capital expenditures covenant amount in 2013			175,000,000
Additional capital expenditures covenant amount in 2014			200,000,000
Potential unused capital spending that may be carried forward					20,000,000
Increased capital expenditures covenant amount in 2014, if carryforward from prior year is utilized					220,000,000
Percentage of net proceeds of additional debt issuances in excess of specified amount that is required to be used for the repayment of term loans			100.00%
Amount of net proceeds from additional debt issuances, that if in excess of, is required to be used for the repayment of term loans			$ 250,000,000
Secured leverage ratio requirement for restriction on cash dividends allowed in any fiscal quarter			4.50