Equity-Based Compensation (Tables)

6 Months Ended

Jun. 30, 2012

Equity-Based Compensation [Abstract]

Equity-based compensation

	Three Months Ended June  30,				Six Months Ended June  30,				Unrecognized Equity-Based Compensation as of June 30, 2012		Weighted Average Years  Remaining of Equity-Based Compensation as of  June 30, 2012
	2012		2011		2012		2011
Stock Appreciation Rights	$	618	$	526	$	1,226	$	1,034	$	5,268	2.6
Restricted Stock		713		42		1,396		77		9,624	3.4
Deferred Stock Units		87		268		246		353		231	0.7
Equity-Based Compensation	$	1,418	$	836	$	2,868	$	1,464	$	15,123
Equity-Based Compensation for Consolidated Core Companies		518		210		714		316		3,675	3.2
Equity-Based Compensation	$	1,936	$	1,046	$	3,582	$	1,780	$	18,798

Summary of assumptions used to determine the fair value of SARs granted to employees and a non-management director by ICG

	Three and Six Months  Ended June 30,
	2012	2011
Expected volatility	56%	56%
Average expected life of SAR (in years)	6.25	5.25-6.25
Risk-free interest rate	0.92%	1.62-1.97%
Dividend yield	0%	0%