Share-based Compensation (Tables)

12 Months Ended

Dec. 31, 2013

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Schedule of Weighted-Average Assumptions

he weighted-average grant date fair value of employee stock options granted during the years ended December 31, 2013 and 2012 was $5.05 and $4.95 per share, respectively, which was estimated using the following weighted-average assumptions:

	As of December 31,
	2013		2012
Expected volatility	74	%	71	%
Expected term (in years)	5.75		5.75
Risk-free interest rate	1.20	%	0.90	%
Expected dividend yield	—		—

Schedule of Stock Option Award Activity

A summary of the Company's stock option award activity as of and for the years ended December 31, 2013 and 2012 is as follows (in thousands, except per share data):

	Number of Shares		Weighted-Average Exercise Price Per Share		Weighted-Average Remaining Contractual Term (In Years)	Aggregate Intrinsic Value
Options outstanding at December 31, 2011	3,146		$	25.93	6.89	$	1,012
Options exercisable at December 31, 2011	1,466		$	34.71	4.79	$	—
Options granted	1,453		$	8.22
Options forfeited	(1,234	)	36.59
Options exercised	—		—
Options outstanding at December 31, 2012	3,365		$	14.38	6.82	$	433
Options exercisable at December 31, 2012	1,222		$	23.30	4.23	$	—
Options granted	226		$	8.06
Options forfeited	(677	)	15.49
Options exercised	(828	)	8.99
Options outstanding at December 31, 2013	2,086		$	15.47	5.93	$	11,786
Options exercisable at December 31, 2013	852		$	25.31	3.10	$	—

Schedule of Restricted Stock Awards Activity

A summary of the Company's restricted stock award activity as of and for the years ended December 31, 2013 and 2012 is as follows (in thousands, except per share data):

	Number of Shares		Weighted-Average Grant Date Fair Value Per Share
Restricted stock awards outstanding at December 31, 2011	1,965		$	20.68
Shares issued	955		$	7.48
Shares forfeited	(608	)	$	17.13
Shares vested	(499	)	$	29.44
Restricted stock awards outstanding at December 31, 2012	1,813		$	12.68
Shares issued	1,142		$	6.24
Shares forfeited	(212	)	$	10.35
Shares vested	(731	)	$	17.16
Restricted stock awards outstanding at December 31, 2013	2,012		$	7.52

The following table summarizes information about restricted stock awards that vested during the years ended December 31, 2013, 2012, and 2011 (in thousands):

	Year Ended December 31,
	2013		2012		2011
Fair value on vesting date of vested restricted stock awards	$	10,381	$	3,888	$	5,864

Schedule of Share-based Compensation Expense

Total share-based compensation expense related to all of the Company's share-based awards for the years ended December 31, 2013, 2012, and 2011 was allocated in the consolidated statements of comprehensive income as follows (in thousands, except per share data):

	Year Ended December 31,
	2013		2012		2011
Cost of service	$	724	$	254	$	1,734
Selling and marketing expense	830		22		1,985
General and administrative expense	13,884		7,846		11,609
Share-based compensation expense	$	15,438	$	8,122	$	15,328
Share-based compensation expense per share:
Basic	$	0.20	$	0.11	$	0.20
Diluted	$	0.20	$	0.11	$	0.20