Long-Term Debt Long-Term Debt (QRI & Restricted Subsidiaries Indenture Financials (Balance Sheet) (Details) - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014
Indenture Disclosure Financials [Line Items]
Assets, Current	$ 221,004	$ 423,277
Property, plant and equipment, net of accumulated depletion and depreciation	440,820	728,780
Investment in subsidiaries (equity method)	0	0
Other Noncurrent Assets	6,640	32,854
Total assets	668,464	1,214,302
Current liabilities	214,517	2,141,037
Liabilities, Noncurrent	197,921	211,136
Liabilities Subject to Compromise	1,884,128	0
Total stockholders' equity	(1,628,102)	(1,137,871)
Total liabilities and stockholders' equity	668,464	1,214,302
Quicksilver And Restricted Subsidiaries [Member]
Indenture Disclosure Financials [Line Items]
Assets, Current	216,433	421,533
Property, plant and equipment, net of accumulated depletion and depreciation	430,401	715,931
Investment in subsidiaries (equity method)	(87,936)	(82,360)
Other Noncurrent Assets	6,640	62,245
Total assets	565,538	1,117,349
Current liabilities	214,393	2,137,532
Liabilities, Noncurrent	108,639	117,688
Liabilities Subject to Compromise	1,884,128	0
Total stockholders' equity	(1,641,622)	(1,137,871)
Total liabilities and stockholders' equity	$ 565,538	$ 1,117,349