Quicksilver Stockholders' Equity (Tables)

9 Months Ended

Sep. 30, 2013

Share-based Compensation, Allocation and Classification in Financial Statements [Abstract]

Assumptions For The Black-Scholes Option Pricing Model For Stock Options Issued

	2013	2012
Weighted avg grant date fair value	$1.05	$4.21
Weighted avg risk-free interest rate	1.31%	1.14%
Expected life	4.9 years	6.0 years
Wtd avg volatility	69.0%	68.2%
Expected dividends	—	—

Stock Option Activity

	Shares		Wtd Avg Exercise Price		Wtd Avg Remaining Contractual Life	Aggregate Intrinsic Value
					(In years)	(In thousands)
Outstanding at January 1, 2013	4,979,980		$	10.23
Granted	2,037,467		1.95
Expired	(151,867	)	7.76
Outstanding at September 30, 2013	6,865,580		$	7.83	7.1	$	—
Exercisable at September 30, 2013	4,670,679		$	9.28	6.2	$	—

Restricted Stock And Stock Unit Activity

	Payable in shares				Payable in cash
	Shares		Wtd Avg Grant Date Fair Value		Shares		Wtd Avg Grant Date Fair Value
Outstanding at January 1, 2013	3,099,135		$	8.48	678,217		$	7.71
Granted	6,102,133		2.74		1,468,695		2.83
Vested	(2,018,457	)	7.57		(284,406	)	8.51
Forfeited	(1,303,113	)	3.63		(298,138	)	3.88
Outstanding at September 30, 2013	5,879,698		$	3.91	1,564,368		$	3.72