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Stock-Based Compensation Plans (Tables)

9 Months Ended

Sep. 30, 2013

Summary of Stock Options Issued Pursuant to Stock Incentive Plans

A summary of transaction stock options issued pursuant to the Company’s stock incentive plans is as follows:


	Number of Shares			Weighted- Average Exercise Price		Weighted- Average Remaining Contractual Term (Years)		Aggregate Intrinsic Value of In-the- Money Options
Outstanding as of December 31, 2012		—		$	—
Transaction stock options converted upon acquisition of ORCC		37,468			91.92
Exercised		(4,925	)		41.76
Cancelled		(6,699	)		98.59

Outstanding as of September 30, 2013		25,844		$	99.75		1.94	$	40,221

Exercisable as of September 30, 2013		25,844		$	99.75		1.94	$	40,221

Estimated Fair Value of Options Granted using Black-Scholes Option-Pricing Model with Weighted-Average Assumptions

The fair value of options granted during the three and nine months ended September 30, 2013 and 2012 was estimated on the date of grant using the Black-Scholes option-pricing model, a pricing model acceptable under U.S. GAAP, with the following weighted-average assumptions:


	Three Months Ended September 30, 2013			Nine Months Ended September 30, 2013			Three Months Ended September 30, 2012			Nine Months Ended September 30, 2012
Expected life (years)		5.55			8.64			5.55			8.01
Interest rate		1.7	%		1.8	%		0.7	%		1.3	%
Volatility		47.1	%		47.6	%		51.1	%		52.4	%
Dividend yield		—			—			—			—

Summary of Nonvested Long-Term Incentive Program Performance Share Awards Outstanding and Changes During Period

A summary of nonvested long-term incentive program performance share awards (“LTIP performance shares”) outstanding as of September 30, 2013 and changes during the period are as follows:


Nonvested LTIP Performance Shares	Number of Shares at Expected Attainment			Weighted- Average Grant Date Fair Value
Nonvested as of December 31, 2012		1,101,484		$	28.14
Granted		14,686			47.63
Forfeited		(46,531	)		37.19
Vested		(327,576	)		16.83

Nonvested as of September 30, 2013		742,063		$	32.95

Summary of Nonvested Restricted Share Awards and Changes During Period

A summary of nonvested restricted share awards (“RSAs”) as of September 30, 2013 and changes during the period are as follows:


Nonvested Restricted Share Awards	Number of Restricted Share Awards			Weighted- Average Grant Date Fair Value
Nonvested as of December 31, 2012		69,238		$	41.02
Granted		7,420			46.07
Vested		(24,729	)		38.93

Nonvested as of September 30, 2013		51,929		$	42.74

ORCC

Summary of Stock Options Issued Pursuant to Stock Incentive Plans

A summary of stock options issued pursuant to the Company’s stock incentive plans is as follows:


	Number of Shares			Weighted- Average Exercise Price		Weighted- Average Remaining Contractual Term (Years)		Aggregate Intrinsic Value of In-the-Money Options
Outstanding as of December 31, 2012		2,968,582		$	27.15
Granted		86,480			44.08
Exercised		(410,263	)		23.61
Forfeited		(58,053	)		38.34
Expired		(429	)		28.94

Outstanding as of September 30, 2013		2,586,317		$	28.03		4.95	$	67,331,959

Exercisable as of September 30, 2013		1,514,104		$	25.45		4.36	$	43,325,255

S1 2003 Stock Incentive Plan

Summary of Nonvested Restricted Share Awards and Changes During Period

A summary of nonvested Transaction RSAs issued under the S1 2003 Stock Incentive Plan as of September 30, 2013 and changes during the period are as follows:


Nonvested Transaction Restricted Share Awards	Number of Restricted Share Awards			Weighted- Average Grant Date Fair Value
Nonvested as of December 31, 2012		50,244		$	35.41
Forfeited		(14,678	)		35.41

Nonvested as of September 30, 2013		35,566		$	35.41