Condensed Consolidating Financial Information (Schedule Of Condensed Consolidated Balance Sheets) (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Percentage of ownership interest	100.00%
Current assets	$ 393,960	$ 207,513
Property, plant and equipment	860,805	1,029,058
Investment in subsidiaries (equity method)	0	0
Other assets	114,961	145,217
Total assets	1,369,726	1,381,788
Current liabilities	134,797	167,791
Long-term liabilities	2,240,899	2,346,794
Stockholders' equity	(1,005,970)	(1,132,797)
Total liabilities and stockholders' equity	1,369,726	1,381,788
Quicksilver Resources Inc. [Member]
Current assets	349,586	261,130
Property, plant and equipment	455,822	621,073
Investment in subsidiaries (equity method)	(217,852)	(191,725)
Other assets	472,792	346,972
Total assets	1,060,348	1,037,450
Current liabilities	124,275	255,678
Long-term liabilities	1,942,043	1,914,568
Stockholders' equity	(1,005,970)	(1,132,796)
Total liabilities and stockholders' equity	1,060,348	1,037,450
Restricted Guarantor Subsidiaries [Member]
Current assets	10,735	105,695
Property, plant and equipment	15,486	20,007
Investment in subsidiaries (equity method)	0	0
Other assets	0	0
Total assets	26,221	125,702
Current liabilities	12,210	112,133
Long-term liabilities	19,242	19,242
Stockholders' equity	(5,231)	(5,673)
Total liabilities and stockholders' equity	26,221	125,702
Restricted Non-Guarantor Subsidiaries [Member]
Current assets	53,034	76,088
Property, plant and equipment	307,865	296,462
Investment in subsidiaries (equity method)	(33,840)	(42,883)
Other assets	32,892	41,865
Total assets	359,951	371,532
Current liabilities	17,167	33,475
Long-term liabilities	542,659	524,107
Stockholders' equity	(199,875)	(186,050)
Total liabilities and stockholders' equity	359,951	371,532
Restricted Subsidiary Eliminations [Member]
Current assets	(19,642)	(222,586)
Property, plant and equipment	0	0
Investment in subsidiaries (equity method)	217,852	191,725
Other assets	(390,723)	(243,620)
Total assets	(192,513)	(274,481)
Current liabilities	(19,642)	(222,586)
Long-term liabilities	(390,723)	(243,620)
Stockholders' equity	217,852	191,725
Total liabilities and stockholders' equity	(192,513)	(274,481)
Quicksilver And Restricted Subsidiaries [Member]
Current assets	393,713	220,327
Property, plant and equipment	779,173	937,542
Investment in subsidiaries (equity method)	(33,840)	(42,883)
Other assets	114,961	145,217
Total assets	1,254,007	1,260,203
Current liabilities	134,010	178,700
Long-term liabilities	2,113,221	2,214,297
Stockholders' equity	(993,224)	(1,132,794)
Total liabilities and stockholders' equity	1,254,007	1,260,203
Unrestricted Non-Guarantor Subsidiaries [Member]
Current assets	909	13,250
Property, plant and equipment	0	0
Investment in subsidiaries (equity method)	(33,840)	(42,905)
Other assets	0	0
Total assets	(32,931)	(29,655)
Current liabilities	888	13,230
Long-term liabilities	0	0
Stockholders' equity	(33,819)	(42,885)
Total liabilities and stockholders' equity	(32,931)	(29,655)
Fortune Creek [Member]
Current assets	1,110	391
Property, plant and equipment	81,632	91,516
Investment in subsidiaries (equity method)	0	0
Other assets	0	0
Total assets	82,742	91,907
Current liabilities	1,671	2,316
Long-term liabilities	1,546	1,585
Stockholders' equity	79,525	88,006
Total liabilities and stockholders' equity	82,742	91,907
Consolidating Eliminations [Member]
Current assets	(1,772)	(26,455)
Property, plant and equipment	0	0
Investment in subsidiaries (equity method)	67,680	85,788
Other assets	0	0
Total assets	65,908	59,333
Current liabilities	(1,772)	(26,455)
Long-term liabilities	126,132	130,912
Stockholders' equity	(58,452)	(45,124)
Total liabilities and stockholders' equity	$ 65,908	$ 59,333