Debt (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	Sep. 30, 2013		Dec. 31, 2012		Sep. 30, 2013 8.75% Senior Notes due 2015 [Member]	Dec. 31, 2012 8.75% Senior Notes due 2015 [Member]	Mar. 31, 2010 8.75% Senior Notes due 2015 [Member]	Sep. 30, 2013 7% Exchangeable Senior Subordinated Notes due 2014 [Member]	Dec. 31, 2012 7% Exchangeable Senior Subordinated Notes due 2014 [Member]	Sep. 30, 2013 7.625% Senior Notes due 2018 [Member]	Dec. 31, 2012 7.625% Senior Notes due 2018 [Member]	Sep. 30, 2013 5.25% Senior Notes due 2022 [Member]	Dec. 31, 2012 5.25% Senior Notes due 2022 [Member]	Sep. 30, 2013 4.25% Senior Notes Due 2020 [Member]	May 31, 2013 4.25% Senior Notes Due 2020 [Member]	Dec. 31, 2012 4.25% Senior Notes Due 2020 [Member]	Sep. 30, 2013 4.625% Senior Notes Due 2023 [Member]	May 31, 2013 4.625% Senior Notes Due 2023 [Member]	Dec. 31, 2012 4.625% Senior Notes Due 2023 [Member]	Sep. 30, 2013 5.75% Senior Notes due 2021 [Member]	Aug. 31, 2013 5.75% Senior Notes due 2021 [Member]	Dec. 31, 2012 5.75% Senior Notes due 2021 [Member]	Sep. 30, 2013 5.875% Senior Notes due 2020 [Member]	Sep. 19, 2013 5.875% Senior Notes due 2020 [Member]	Dec. 31, 2012 5.875% Senior Notes due 2020 [Member]	Sep. 30, 2013 Senior Secured Revolving Credit Facility [Member]	Dec. 31, 2012 Senior Secured Revolving Credit Facility [Member]
Debt
Conversion price per share (in dollars per share)								$ 1.841
Debt carrying value					$ 0	$ 800,000		$ 502,370	$ 550,000	$ 539,551	$ 700,000	$ 400,000	$ 400,000	$ 500,000		$ 0	$ 500,000		$ 0	$ 600,000		$ 0	$ 650,000		$ 0	$ 40,000	$ 0
Less: discount					0	(7,056)	(14,000)	(2,374)	(4,112)	(6,661)	(9,647)	(5,473)	(5,826)	(5,366)	(5,625)	0	(5,459)	(5,625)	0	(5,644)	(5,737)	0	(7,296)	(7,312)	0
Other debt:
Capital leases	17,547		11,861
Total debt	3,711,195		2,435,220
Less: total current maturities	538,875	[1]	4,234	[1]
Total long-term	3,172,320		2,430,986
Less: long-term related party	10,948		208,906
Total long-term, excluding related party	3,161,372		2,222,080
Current maturities of long-term related party debt	$ 49,383		$ 0

[1] This balance includes $49,383 in related party current maturities.