Equity-based Incentive Plans (Tables)

12 Months Ended

Dec. 31, 2015

Equity-based Incentive Plans

Summary of the company's RSU activity and outstanding RSU's

        A summary of the company's RSU activity and outstanding RSUs as of December 31, 2015, are presented below (dollars in thousands except grant date fair value):

	Number of RSUs			Weighted Average Grant Date Fair Value		Aggregate Intrinsic Value		Unrecognized Compensation
Outstanding RSUs as of January 1, 2013		1,269,307		$	11.87	$	17,428	$	12,318
Granted		1,293,140		$	18.16
Vested		(170,398	)	$	17.74
Forfeited		(112,406	)	$	12.48
As of December 31, 2013		2,279,643		$	14.97	$	44,544	$	22,197
Granted		1,121,416		$	21.82
Vested		(1,245,489	)	$	13.20
Forfeited		(144,344	)	$	15.51
As of December 31, 2014		2,011,226		$	19.85	$	39,702	$	25,171
Granted		1,589,309		$	16.70
Vested		(1,197,403	)	$	18.13
Forfeited		(124,428	)	$	19.89
As of December 31, 2015 (nonvested)		2,278,704		$	18.55	$	40,720	$	27,615

Schedule of stock option activity for all plans

	Number of Options			Weighted Average Exercise Price		Weighted Average Grant Date Fair Value
Outstanding options as of January 1, 2013		7,073,709		$	14.56	$	5.30
Exercised		(3,134,953	)	$	11.02	$	4.19
Forfeited		(681,586	)	$	29.52	$	9.01
As of December 31, 2013		3,257,170		$	14.84	$	5.58
Exercised		(1,773,872	)	$	15.01	$	5.57
Forfeited		(84,783	)	$	14.98	$	5.45
As of December 31, 2014		1,398,515		$	14.62	$	5.61
Exercised		(753,159	)	$	14.75	$	5.75
Forfeited		(49,411	)	$	15.02	$	5.87
As of December 31, 2015		595,945		$	14.43	$	5.41

Schedule of information concerning outstanding options, by range of exercise price

Range of Exercise Price	Exercisable Outstanding Options		Weighted Average Remaining Contractual Life (Years)		Weighted Average Exercise Price of Exercisable Outstanding Options
$10 to $15		333,954		0.89	$	12.54
$15 to $20		261,991		0.39	$	16.85
		595,945

Schedule of performance period transition awards

	Maximum Shares That Could Be Issued		Award Earned			Award Issued/Issuable
2013 LTIP Award:
One-year performance period transition award		173,319		164,653			54,885		March 2014
							54,884		March 2015
							54,884		March 2016
Two-year performance period transition award		173,319		159,454			53,152		March 2015
							53,151		March 2016
							53,151		March 2017
Three-year performance period award		173,319		149,056			49,686		March 2016
							49,686		March 2017
							49,684		March 2018
2014 LTIP Award:
Three-year performance period award		269,531			*			*
2015 LTIP Award:
Three-year performance period award		301,759			*			*

*           Not yet earned as performance period not complete.