Supplemental Guarantor Information (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Dec. 31, 2014	Sep. 30, 2014	Dec. 31, 2013
Condensed Consolidated Statements of Comprehensive Income (Loss) [Abstract]
Net sales	$ 1,709.9	$ 1,593.8	$ 5,150.2	$ 4,508.1
Cost of products sold (exclusive of items shown separately below)	1,524.4	1,438.9	4,712.2	4,191.4
Selling and administrative expenses (exclusive of items shown separately below)	65.7	65.6	198.4	179.7
Depreciation	55.5	49.1	166.6	146.3
Pension and OPEB expense (income)	(15.9)	(23.5)	(48.1)	(74.2)
Total operating costs	1,629.7	1,530.1	5,029.1	4,443.2
Operating profit (loss)	80.2	63.7	121.1	64.9
Interest expense	43.0	35.6	130.4	101.0
Impairment of Magnetation investment	0.0	0.0	(256.3)	0.0
Other income (expense)	4.3	(15.3)	(10.9)	(20.2)
Income (loss) before income taxes	41.5	12.8	(276.5)	(56.3)
Income tax expense (benefit)	17.2	3.9	39.5	7.5
Equity in net income (loss) of subsidiaries	0.0	0.0	0.0	0.0
Net income (loss)	24.3	8.9	(316.0)	(63.8)
Less: Net income attributable to noncontrolling interests	17.6	16.1	47.6	46.6
Net income (loss) attributable to AK Steel Holding Corporation	6.7	(7.2)	(363.6)	(110.4)
Other comprehensive income (loss)	(20.2)	(22.6)	(28.2)	(74.0)
Comprehensive income (loss) attributable to AK Steel Holding Corporation	(13.5)	(29.8)	(391.8)	(184.4)
Current assets:
Cash and cash equivalents	90.0	60.8	70.2	45.3	$ 90.0	$ 70.2	$ 60.8	$ 45.3
Accounts receivable, net					550.8	644.3
Inventory, net					1,141.2	1,172.1
Deferred tax assets, current					50.4	67.7
Other current assets					44.4	71.4
Total current assets					1,876.8	2,025.7
Property, plant and equipment					6,442.1	6,388.4
Accumulated depreciation					(4,340.9)	(4,175.2)
Property, plant and equipment, net					2,101.2	2,213.2
Other non-current assets:
Investments in affilates					77.4	388.7
Investment in subsidiaries					0.0	0.0
Inter-company accounts					0.0	0.0
Other non-current assets					194.9	230.9
TOTAL ASSETS					4,250.3	4,858.5
Current liabilities:
Accounts payable					762.3	803.1
Accrued liabilities					261.6	266.5
Current portion of pension and other postretirement benefit obligations					60.9	55.6
Total current liabilities					1,084.8	1,125.2
Non-current liabilities:
Long-term debt					2,386.3	2,452.5
Pension and other postretirement benefit obligations					1,130.7	1,225.3
Other non-current liabilities					133.2	132.5
TOTAL LIABILITIES					4,735.0	4,935.5
Total stockholders' equity (deficit)					(878.1)	(492.5)
Noncontrolling interests					393.4	415.5
TOTAL EQUITY (DEFICIT)					(484.7)	(77.0)	334.8	192.7
TOTAL LIABILITIES AND EQUITY (DEFICIT)					4,250.3	4,858.5
Condensed Consolidated Statements of Cash Flows [Abstract]
Net cash flows from operating activities			200.1	(380.6)
Cash flows from investing activities:
Capital investments			(71.0)	(39.3)
Investments in Magnetation joint venture			0.0	(90.0)
Investment in acquired business, net of cash acquired			0.0	(677.2)
Proceeds from sale of equity investee			25.0	0.0
Other investing items, net			1.5	15.4
Net cash flows from investing activities			(44.5)	(791.1)
Cash flows from financing activities:
Net borrowings (payments) under credit facility			(55.0)	470.0
Proceeds from issuance of long-term debt			0.0	427.1
Redemption of long-term debt			(10.1)	(0.6)
Proceeds from issuance of common stock			0.0	345.3
Debt issuance costs			0.0	(10.6)
Inter-company activity			0.0	0.0
SunCoke Middletown distributions to noncontrolling interest owners			(69.7)	(40.6)
Other financing items, net			(1.0)	(3.4)
Net cash flows from financing activities			(135.8)	1,187.2
Net increase (decrease) in cash and cash equivalents			19.8	15.5
Cash and cash equivalents, beginning of period			70.2	45.3
Cash and cash equivalents, end of period	90.0	60.8	90.0	60.8
AK Holding [Member]
Condensed Consolidated Statements of Comprehensive Income (Loss) [Abstract]
Net sales	0.0	0.0	0.0	0.0
Cost of products sold (exclusive of items shown separately below)	0.0	0.0	0.0	0.0
Selling and administrative expenses (exclusive of items shown separately below)	0.9	1.0	4.0	3.6
Depreciation	0.0	0.0	0.0	0.0
Pension and OPEB expense (income)	0.0	0.0	0.0	0.0
Total operating costs	0.9	1.0	4.0	3.6
Operating profit (loss)	(0.9)	(1.0)	(4.0)	(3.6)
Interest expense	0.0	0.0	0.0	0.0
Impairment of Magnetation investment			0.0
Other income (expense)	0.0	0.0	0.0	0.0
Income (loss) before income taxes	(0.9)	(1.0)	(4.0)	(3.6)
Income tax expense (benefit)	0.0	0.0	0.0	0.0
Equity in net income (loss) of subsidiaries	7.6	(6.2)	(359.6)	(106.8)
Net income (loss)	6.7	(7.2)	(363.6)	(110.4)
Less: Net income attributable to noncontrolling interests	0.0	0.0	0.0	0.0
Net income (loss) attributable to AK Steel Holding Corporation	6.7	(7.2)	(363.6)	(110.4)
Other comprehensive income (loss)	(20.2)	(22.6)	(28.2)	(74.0)
Comprehensive income (loss) attributable to AK Steel Holding Corporation	(13.5)	(29.8)	(391.8)	(184.4)
Current assets:
Cash and cash equivalents	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0
Accounts receivable, net					0.0	0.0
Inventory, net					0.0	0.0
Deferred tax assets, current					0.0	0.0
Other current assets					0.3	0.3
Total current assets					0.3	0.3
Property, plant and equipment					0.0	0.0
Accumulated depreciation					0.0	0.0
Property, plant and equipment, net					0.0	0.0
Other non-current assets:
Investments in affilates					0.0	0.0
Investment in subsidiaries					(3,399.1)	(2,970.9)
Inter-company accounts					2,520.7	2,478.1
Other non-current assets					0.0	0.0
TOTAL ASSETS					(878.1)	(492.5)
Current liabilities:
Accounts payable					0.0	0.0
Accrued liabilities					0.0	0.0
Current portion of pension and other postretirement benefit obligations					0.0	0.0
Total current liabilities					0.0	0.0
Non-current liabilities:
Long-term debt					0.0	0.0
Pension and other postretirement benefit obligations					0.0	0.0
Other non-current liabilities					0.0	0.0
TOTAL LIABILITIES					0.0	0.0
Total stockholders' equity (deficit)					(878.1)	(492.5)
Noncontrolling interests					0.0	0.0
TOTAL EQUITY (DEFICIT)					(878.1)	(492.5)
TOTAL LIABILITIES AND EQUITY (DEFICIT)					(878.1)	(492.5)
Condensed Consolidated Statements of Cash Flows [Abstract]
Net cash flows from operating activities			(3.1)	1.2
Cash flows from investing activities:
Capital investments			0.0	0.0
Investments in Magnetation joint venture				0.0
Investment in acquired business, net of cash acquired				0.0
Proceeds from sale of equity investee			0.0
Other investing items, net			0.0	0.0
Net cash flows from investing activities			0.0	0.0
Cash flows from financing activities:
Net borrowings (payments) under credit facility			0.0	0.0
Proceeds from issuance of long-term debt				0.0
Redemption of long-term debt			0.0	0.0
Proceeds from issuance of common stock				345.3
Debt issuance costs				0.0
Inter-company activity			4.1	(345.6)
SunCoke Middletown distributions to noncontrolling interest owners			0.0	0.0
Other financing items, net			(1.0)	(0.9)
Net cash flows from financing activities			3.1	(1.2)
Net increase (decrease) in cash and cash equivalents			0.0	0.0
Cash and cash equivalents, beginning of period			0.0	0.0
Cash and cash equivalents, end of period	0.0	0.0	0.0	0.0
AK Steel [Member]
Condensed Consolidated Statements of Comprehensive Income (Loss) [Abstract]
Net sales	1,660.9	1,552.5	5,002.7	4,350.7
Cost of products sold (exclusive of items shown separately below)	1,510.7	1,433.1	4,676.3	4,141.1
Selling and administrative expenses (exclusive of items shown separately below)	68.4	65.2	204.6	177.9
Depreciation	48.3	42.7	145.2	127.5
Pension and OPEB expense (income)	(15.9)	(23.5)	(48.1)	(74.2)
Total operating costs	1,611.5	1,517.5	4,978.0	4,372.3
Operating profit (loss)	49.4	35.0	24.7	(21.6)
Interest expense	42.5	34.8	128.9	99.0
Impairment of Magnetation investment			0.0
Other income (expense)	1.0	(15.8)	(3.2)	(23.5)
Income (loss) before income taxes	7.9	(15.6)	(107.4)	(144.1)
Income tax expense (benefit)	10.4	(1.5)	22.2	(10.8)
Equity in net income (loss) of subsidiaries	10.1	7.9	(230.0)	26.5
Net income (loss)	7.6	(6.2)	(359.6)	(106.8)
Less: Net income attributable to noncontrolling interests	0.0	0.0	0.0	0.0
Net income (loss) attributable to AK Steel Holding Corporation	7.6	(6.2)	(359.6)	(106.8)
Other comprehensive income (loss)	(20.2)	(22.6)	(28.2)	(74.0)
Comprehensive income (loss) attributable to AK Steel Holding Corporation	(12.6)	(28.8)	(387.8)	(180.8)
Current assets:
Cash and cash equivalents	50.3	21.0	28.5	16.8	50.3	28.5	21.0	16.8
Accounts receivable, net					520.2	606.2
Inventory, net					1,058.8	1,080.5
Deferred tax assets, current					50.2	67.5
Other current assets					41.1	67.9
Total current assets					1,720.6	1,850.6
Property, plant and equipment					5,744.0	5,695.8
Accumulated depreciation					(4,186.0)	(4,040.8)
Property, plant and equipment, net					1,558.0	1,655.0
Other non-current assets:
Investments in affilates					43.0	84.5
Investment in subsidiaries					1,375.7	1,582.4
Inter-company accounts					(3,524.2)	(3,420.4)
Other non-current assets					101.5	137.4
TOTAL ASSETS					1,274.6	1,889.5
Current liabilities:
Accounts payable					724.6	754.9
Accrued liabilities					242.3	244.6
Current portion of pension and other postretirement benefit obligations					60.6	55.3
Total current liabilities					1,027.5	1,054.8
Non-current liabilities:
Long-term debt					2,386.3	2,452.5
Pension and other postretirement benefit obligations					1,127.3	1,221.3
Other non-current liabilities					132.6	131.8
TOTAL LIABILITIES					4,673.7	4,860.4
Total stockholders' equity (deficit)					(3,399.1)	(2,970.9)
Noncontrolling interests					0.0	0.0
TOTAL EQUITY (DEFICIT)					(3,399.1)	(2,970.9)
TOTAL LIABILITIES AND EQUITY (DEFICIT)					1,274.6	1,889.5
Condensed Consolidated Statements of Cash Flows [Abstract]
Net cash flows from operating activities			92.9	(476.2)
Cash flows from investing activities:
Capital investments			(64.3)	(25.2)
Investments in Magnetation joint venture				0.0
Investment in acquired business, net of cash acquired				(677.2)
Proceeds from sale of equity investee			25.0
Other investing items, net			1.8	15.4
Net cash flows from investing activities			(37.5)	(687.0)
Cash flows from financing activities:
Net borrowings (payments) under credit facility			(55.0)	470.0
Proceeds from issuance of long-term debt				427.1
Redemption of long-term debt			(10.1)	(0.6)
Proceeds from issuance of common stock				0.0
Debt issuance costs				(10.6)
Inter-company activity			31.5	281.4
SunCoke Middletown distributions to noncontrolling interest owners			0.0	0.0
Other financing items, net			0.0	0.1
Net cash flows from financing activities			(33.6)	1,167.4
Net increase (decrease) in cash and cash equivalents			21.8	4.2
Cash and cash equivalents, beginning of period			28.5	16.8
Cash and cash equivalents, end of period	50.3	21.0	50.3	21.0
Guarantor Subsidiaries [Member]
Condensed Consolidated Statements of Comprehensive Income (Loss) [Abstract]
Net sales	62.7	69.7	193.5	209.8
Cost of products sold (exclusive of items shown separately below)	42.3	50.1	129.3	151.6
Selling and administrative expenses (exclusive of items shown separately below)	2.6	2.9	8.3	8.6
Depreciation	1.0	1.1	3.0	3.1
Pension and OPEB expense (income)	0.0	0.0	0.0	0.0
Total operating costs	45.9	54.1	140.6	163.3
Operating profit (loss)	16.8	15.6	52.9	46.5
Interest expense	0.0	0.0	0.0	0.0
Impairment of Magnetation investment			0.0
Other income (expense)	1.7	1.6	4.9	4.9
Income (loss) before income taxes	18.5	17.2	57.8	51.4
Income tax expense (benefit)	7.4	6.9	23.1	20.6
Equity in net income (loss) of subsidiaries	0.0	0.0	0.0	0.0
Net income (loss)	11.1	10.3	34.7	30.8
Less: Net income attributable to noncontrolling interests	0.0	0.0	0.0	0.0
Net income (loss) attributable to AK Steel Holding Corporation	11.1	10.3	34.7	30.8
Other comprehensive income (loss)	0.0	0.0	0.0	0.0
Comprehensive income (loss) attributable to AK Steel Holding Corporation	11.1	10.3	34.7	30.8
Current assets:
Cash and cash equivalents	0.0	0.2	0.5	0.0	0.0	0.5	0.2	0.0
Accounts receivable, net					27.0	27.6
Inventory, net					25.0	26.2
Deferred tax assets, current					0.0	0.0
Other current assets					0.3	0.2
Total current assets					52.3	54.5
Property, plant and equipment					100.6	97.3
Accumulated depreciation					(74.8)	(71.8)
Property, plant and equipment, net					25.8	25.5
Other non-current assets:
Investments in affilates					0.0	0.0
Investment in subsidiaries					0.0	0.0
Inter-company accounts					1,390.4	1,325.5
Other non-current assets					33.0	33.0
TOTAL ASSETS					1,501.5	1,438.5
Current liabilities:
Accounts payable					6.2	6.9
Accrued liabilities					3.0	3.0
Current portion of pension and other postretirement benefit obligations					0.0	0.0
Total current liabilities					9.2	9.9
Non-current liabilities:
Long-term debt					0.0	0.0
Pension and other postretirement benefit obligations					0.0	0.0
Other non-current liabilities					0.0	0.0
TOTAL LIABILITIES					9.2	9.9
Total stockholders' equity (deficit)					1,492.3	1,428.6
Noncontrolling interests					0.0	0.0
TOTAL EQUITY (DEFICIT)					1,492.3	1,428.6
TOTAL LIABILITIES AND EQUITY (DEFICIT)					1,501.5	1,438.5
Condensed Consolidated Statements of Cash Flows [Abstract]
Net cash flows from operating activities			38.3	18.7
Cash flows from investing activities:
Capital investments			(2.9)	(1.9)
Investments in Magnetation joint venture				0.0
Investment in acquired business, net of cash acquired				0.0
Proceeds from sale of equity investee			0.0
Other investing items, net			0.0	0.0
Net cash flows from investing activities			(2.9)	(1.9)
Cash flows from financing activities:
Net borrowings (payments) under credit facility			0.0	0.0
Proceeds from issuance of long-term debt				0.0
Redemption of long-term debt			0.0	0.0
Proceeds from issuance of common stock				0.0
Debt issuance costs				0.0
Inter-company activity			(35.9)	(16.6)
SunCoke Middletown distributions to noncontrolling interest owners			0.0	0.0
Other financing items, net			0.0	0.0
Net cash flows from financing activities			(35.9)	(16.6)
Net increase (decrease) in cash and cash equivalents			(0.5)	0.2
Cash and cash equivalents, beginning of period			0.5	0.0
Cash and cash equivalents, end of period	0.0	0.2	0.0	0.2
Other Non-Guarantor Subsidiaries [Member]
Condensed Consolidated Statements of Comprehensive Income (Loss) [Abstract]
Net sales	141.5	135.7	402.0	393.7
Cost of products sold (exclusive of items shown separately below)	112.3	104.4	316.1	309.0
Selling and administrative expenses (exclusive of items shown separately below)	6.4	7.7	19.5	22.3
Depreciation	6.2	5.3	18.4	15.7
Pension and OPEB expense (income)	0.0	0.0	0.0	0.0
Total operating costs	124.9	117.4	354.0	347.0
Operating profit (loss)	16.6	18.3	48.0	46.7
Interest expense	0.5	0.8	1.5	2.0
Impairment of Magnetation investment			(256.3)
Other income (expense)	1.6	(1.1)	(12.6)	(1.6)
Income (loss) before income taxes	17.7	16.4	(222.4)	43.1
Income tax expense (benefit)	0.0	0.2	(5.6)	(1.0)
Equity in net income (loss) of subsidiaries	0.0	0.0	0.0	0.0
Net income (loss)	17.7	16.2	(216.8)	44.1
Less: Net income attributable to noncontrolling interests	17.6	16.1	47.6	46.6
Net income (loss) attributable to AK Steel Holding Corporation	0.1	0.1	(264.4)	(2.5)
Other comprehensive income (loss)	0.0	(2.5)	(2.0)	(2.6)
Comprehensive income (loss) attributable to AK Steel Holding Corporation	0.1	(2.4)	(266.4)	(5.1)
Current assets:
Cash and cash equivalents	39.7	39.6	41.2	28.5	39.7	41.2	39.6	28.5
Accounts receivable, net					44.9	37.3
Inventory, net					66.1	73.5
Deferred tax assets, current					0.2	0.2
Other current assets					2.7	3.0
Total current assets					153.6	155.2
Property, plant and equipment					597.5	595.3
Accumulated depreciation					(80.1)	(62.6)
Property, plant and equipment, net					517.4	532.7
Other non-current assets:
Investments in affilates					34.4	304.2
Investment in subsidiaries					0.0	0.0
Inter-company accounts					(430.3)	(412.4)
Other non-current assets					60.4	60.5
TOTAL ASSETS					335.5	640.2
Current liabilities:
Accounts payable					32.7	42.0
Accrued liabilities					16.3	18.9
Current portion of pension and other postretirement benefit obligations					0.3	0.3
Total current liabilities					49.3	61.2
Non-current liabilities:
Long-term debt					0.0	0.0
Pension and other postretirement benefit obligations					3.4	4.0
Other non-current liabilities					0.6	0.7
TOTAL LIABILITIES					53.3	65.9
Total stockholders' equity (deficit)					(111.2)	158.8
Noncontrolling interests					393.4	415.5
TOTAL EQUITY (DEFICIT)					282.2	574.3
TOTAL LIABILITIES AND EQUITY (DEFICIT)					335.5	640.2
Condensed Consolidated Statements of Cash Flows [Abstract]
Net cash flows from operating activities			57.7	70.7
Cash flows from investing activities:
Capital investments			(3.8)	(12.2)
Investments in Magnetation joint venture				(90.0)
Investment in acquired business, net of cash acquired				0.0
Proceeds from sale of equity investee			0.0
Other investing items, net			(0.3)	0.0
Net cash flows from investing activities			(4.1)	(102.2)
Cash flows from financing activities:
Net borrowings (payments) under credit facility			0.0	0.0
Proceeds from issuance of long-term debt				0.0
Redemption of long-term debt			0.0	0.0
Proceeds from issuance of common stock				0.0
Debt issuance costs				0.0
Inter-company activity			14.6	85.8
SunCoke Middletown distributions to noncontrolling interest owners			(69.7)	(40.6)
Other financing items, net			0.0	(2.6)
Net cash flows from financing activities			(55.1)	42.6
Net increase (decrease) in cash and cash equivalents			(1.5)	11.1
Cash and cash equivalents, beginning of period			41.2	28.5
Cash and cash equivalents, end of period	39.7	39.6	39.7	39.6
Eliminations [Member]
Condensed Consolidated Statements of Comprehensive Income (Loss) [Abstract]
Net sales	(155.2)	(164.1)	(448.0)	(446.1)
Cost of products sold (exclusive of items shown separately below)	(140.9)	(148.7)	(409.5)	(410.3)
Selling and administrative expenses (exclusive of items shown separately below)	(12.6)	(11.2)	(38.0)	(32.7)
Depreciation	0.0	0.0	0.0	0.0
Pension and OPEB expense (income)	0.0	0.0	0.0	0.0
Total operating costs	(153.5)	(159.9)	(447.5)	(443.0)
Operating profit (loss)	(1.7)	(4.2)	(0.5)	(3.1)
Interest expense	0.0	0.0	0.0	0.0
Impairment of Magnetation investment			0.0
Other income (expense)	0.0	0.0	0.0	0.0
Income (loss) before income taxes	(1.7)	(4.2)	(0.5)	(3.1)
Income tax expense (benefit)	(0.6)	(1.7)	(0.2)	(1.3)
Equity in net income (loss) of subsidiaries	(17.7)	(1.7)	589.6	80.3
Net income (loss)	(18.8)	(4.2)	589.3	78.5
Less: Net income attributable to noncontrolling interests	0.0	0.0	0.0	0.0
Net income (loss) attributable to AK Steel Holding Corporation	(18.8)	(4.2)	589.3	78.5
Other comprehensive income (loss)	20.2	25.1	30.2	76.6
Comprehensive income (loss) attributable to AK Steel Holding Corporation	1.4	20.9	619.5	155.1
Current assets:
Cash and cash equivalents	0.0	0.0	0.0	0.0	0.0	0.0	$ 0.0	$ 0.0
Accounts receivable, net					(41.3)	(26.8)
Inventory, net					(8.7)	(8.1)
Deferred tax assets, current					0.0	0.0
Other current assets					0.0	0.0
Total current assets					(50.0)	(34.9)
Property, plant and equipment					0.0	0.0
Accumulated depreciation					0.0	0.0
Property, plant and equipment, net					0.0	0.0
Other non-current assets:
Investments in affilates					0.0	0.0
Investment in subsidiaries					2,023.4	1,388.5
Inter-company accounts					43.4	29.2
Other non-current assets					0.0	0.0
TOTAL ASSETS					2,016.8	1,382.8
Current liabilities:
Accounts payable					(1.2)	(0.7)
Accrued liabilities					0.0	0.0
Current portion of pension and other postretirement benefit obligations					0.0	0.0
Total current liabilities					(1.2)	(0.7)
Non-current liabilities:
Long-term debt					0.0	0.0
Pension and other postretirement benefit obligations					0.0	0.0
Other non-current liabilities					0.0	0.0
TOTAL LIABILITIES					(1.2)	(0.7)
Total stockholders' equity (deficit)					2,018.0	1,383.5
Noncontrolling interests					0.0	0.0
TOTAL EQUITY (DEFICIT)					2,018.0	1,383.5
TOTAL LIABILITIES AND EQUITY (DEFICIT)					$ 2,016.8	$ 1,382.8
Condensed Consolidated Statements of Cash Flows [Abstract]
Net cash flows from operating activities			14.3	5.0
Cash flows from investing activities:
Capital investments			0.0	0.0
Investments in Magnetation joint venture				0.0
Investment in acquired business, net of cash acquired				0.0
Proceeds from sale of equity investee			0.0
Other investing items, net			0.0	0.0
Net cash flows from investing activities			0.0	0.0
Cash flows from financing activities:
Net borrowings (payments) under credit facility			0.0	0.0
Proceeds from issuance of long-term debt				0.0
Redemption of long-term debt			0.0	0.0
Proceeds from issuance of common stock				0.0
Debt issuance costs				0.0
Inter-company activity			(14.3)	(5.0)
SunCoke Middletown distributions to noncontrolling interest owners			0.0	0.0
Other financing items, net			0.0	0.0
Net cash flows from financing activities			(14.3)	(5.0)
Net increase (decrease) in cash and cash equivalents			0.0	0.0
Cash and cash equivalents, beginning of period			0.0	0.0
Cash and cash equivalents, end of period	$ 0.0	$ 0.0	$ 0.0	$ 0.0
Senior Secured Notes Due December 2018 [Member]
Condensed Financial Statements, Captions [Line Items]
Debt Instrument, Interest Rate, Stated Percentage					8.75%	8.75%
Senior Notes Due May 2020 [Member]
Condensed Financial Statements, Captions [Line Items]
Debt Instrument, Interest Rate, Stated Percentage					7.625%	7.625%
Senior Notes Due October 2021 [Member]
Condensed Financial Statements, Captions [Line Items]
Debt Instrument, Interest Rate, Stated Percentage					7.625%	7.625%
Senior Notes Due April 2022 [Member]
Condensed Financial Statements, Captions [Line Items]
Debt Instrument, Interest Rate, Stated Percentage					8.375%	8.375%
Exchangeable Senior Notes Due November 2019 [Member]
Condensed Financial Statements, Captions [Line Items]
Debt Instrument, Interest Rate, Stated Percentage					5.00%	5.00%