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SHARE-BASED COMPENSATION PLANS (Tables)

6 Months Ended

12 Months Ended

Jun. 30, 2013

Dec. 31, 2012

Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]

Assumptions to estimate fair value of stock options and SAR's

The following table sets forth the weighted average fair value of stock options on the date of grant and the weighted average fair value of the SARs at December 31, 2012. The assumptions used to estimate the fair value of the stock options and SARs using the Black-Scholes option valuation model are as follows:


	Date of Grant						As of December 31, 2012
	Stock Options 2012			Stock Options 2011			SARs 2010
Weighted average fair value of stock options granted and SARs outstanding	$	15.77		$	17.85		$	13.73
Expected volatility		70.56	%		72.56	%		51.57	%
Expected life		5.5 years			6 years			2.7 years
Risk-free interest rate		0.89	%		2.30	%		0.34	%
Expected dividend yield		—			—			—

Summary of stock option and SAR's activity

The following options and stock appreciation rights were exercised during the six months ended June 30, 2013:


Award Type	Number of Units		Weighted Average Exercise Price
Options		926	$	20.80
Stock Appreciation Rights		3,846	$	15.40

The following table summarizes stock option and SARs activity for the years ended December 31, 2012, 2011 and 2010:


	Stock Options					SARs
	Shares			Weighted Average Exercise		Shares			Weighted Average Exercise
Stock options outstanding at December 31, 2009		392,678		$	23.48		112,471		$	10.00
Granted		4,089			15.30		151,287			15.40
Exercised		(29,104	)		9.81		(16,639	)		10.00
Canceled/Forfeited		(36,823	)		23.31		(16,556	)		11.17

Stock options outstanding at December 31, 2010		330,840			24.60		230,563			13.46
Granted		139,916			27.39		—			—
Exercised		(129,785	)		11.41		(119,801	)		13.10
Canceled/forfeited		(19,364	)		40.16		(3,123	)		14.46

Stock options outstanding at December 31, 2011		321,607			30.20		107,639			13.83
Granted		151,102			26.97		—			—
Exercised		(40,173	)		11.84		(34,385	)		12.73
Canceled/forfeited/expired		(62,536	)		29.22		(4,389	)		15.40

Stock options outstanding at December 31, 2012		370,000		$	31.04		68,865		$	14.27

Exercise Price Range

Options to purchase 218,369 shares were exercisable at December 31, 2012 at a weighted average exercise price of $34.00.


	Options Outstanding						Options Exercisable
Range of Exercise Price	Number Outstanding		Weighted Average Exercise Price		Weighted Average Remaining Contractual Life (Years)		Number Exercisable		Weighted Average Exercise Price		Weighted Average Remaining Contractual Life (Years)
$0.00-$10.00		27,853	$	10.00		6.09		27,853	$	10.00		6.09
$10.00-$20.00		15,892	$	18.06		8.89		2,726	$	15.30		7.59
$20.00-$30.00		227,154	$	27.28		6.60		90,397	$	27.00		3.31
$30.00-$40.00		49,673	$	39.12		2.39		47,965	$	39.28		2.18
$40.00-$50.00		20,464	$	48.50		2.91		20,464	$	48.50		2.91
$50.00-$60.00		12,937	$	51.40		2.23		12,937	$	51.40		2.23
$60.00-$70.00		3,219	$	66.60		1.02		3,219	$	66.60		1.02
$70.00-$80.00		12,808	$	70.90		1.14		12,808	$	70.90		1.14

Summary of restricted stock and restricted stock units activity

The following table summarizes restricted stock and restricted stock units activity for the years ended December 31, 2012, 2011 and 2010:


	Restricted Stock					Restricted Stock Units
	Number of Shares			Weighted Average Grant Date Fair Value		Number of Units			Weighted Average Fair Value
Outstanding at December 31, 2009		134,389		$	15.95		67,485		$	18.06
Granted		2,363			15.30		91,378			15.40
Vested		(57,926	)		21.90		(22,500	)		15.24
Cancelled/Forfeited		(14,203	)		12.43		(9,947	)		15.76

Outstanding at December 31, 2010		64,623			11.37		126,416			27.32
Granted		205,463			27.37		—			—
Vested		(85,323	)		19.36		(79,014	)		27.87
Cancelled/Forfeited		(11,254	)		26.89		(1,884	)		25.03

Outstanding at December 31, 2011		173,509			25.38		45,518			24.14
Granted		230,096			26.40		—			—
Vested		(95,336	)		23.15		(31,456	)		25.92
Cancelled/Forfeited		(68,571	)		27.43		(2,651	)		24.60

Outstanding at December 31, 2012		239,698		$	26.65		11,411		$	24.60

Summary of performance shares and performance unit activity

The following table summarizes performance shares and performance units’ activity for the years-ended December 31, 2012, 2011, and 2010:


	Performance Shares					Performance Units
	Number of Shares			Weighted Average Grant Date Fair Value		Number of Units			Weighted Average Fair Value
Outstanding at December 31, 2009		136,298		$	16.59		67,485		$	27.53
Granted		2,363			18.65		91,378			19.94
Vested		—			—		—			—
Cancelled/Forfeited		(37,833	)		17.53		(13,840	)		20.12

Outstanding at December 31, 2010		100,828			16.29		145,023			35.41
Granted		81,489			42.72		—			—
Vested		(56,830	)		23.24		(57,948	)		24.68
Cancelled/Forfeited		(19,558	)		48.62		(2,536	)		25.03

Outstanding at December 31, 2011		105,929			26.92		84,539			39.78
Granted		145,508			25.78		32,498			—
Vested		(111,703	)		7.96		(74,845	)		31.17
Cancelled/Forfeited		(30,575	)		42.11		(7,953	)		49.20

Outstanding at December 31, 2012		109,159		$	40.55		34,239		$	49.20

Issuance of new grants

The following table summarizes the new grants issued during the six months ended June 30, 2013:


Grant date	Restricted stock		Grant date fair value of restricted stock		Stock options		Grant date fair value of stock options		Performance shares		Grant date fair value of performance shares
January 2, 2013		1,805	$	25.20		—	$	—		—	$	—
January 22, 2013		47,994	$	23.90		77,715	$	14.77		95,991	$	27.41
February 4, 2013		18,668	$	22.63		17,692	$	14.00		21,828	$	25.96
April 1, 2013		157,142	$	18.51		73,290	$	11.39		28,662	$	21.23
May 21, 2013		111,193	$	13.66		—	$	—		—	$	—

Weighted average fair value of SAR's, performance units and RSU's outstanding

The following shows the weighted average fair value of SARs outstanding at June 30, 2013:


	SARs
Weighted average fair value	$	4.05

Options and SAR's exercisable

The following table shows the options and SARs exercisable at June 30, 2013:


Options Exercisable	Weighted Average Exercise Price	SARs Exercisable	Weighted Average Exercise Price
256,336	$32.92	65,019	$14.21

- Definition

Tabular disclosure of components of a stock option or other award plan under which equity-based compensation is awarded to employees, typically comprised of the amount of unearned compensation (deferred compensation cost), compensation expense, and changes in the quantity and fair value of the shares (or other type of equity) granted, exercised, forfeited, and issued and outstanding pertaining to that plan. Disclosure may also include nature and general terms of such arrangements that existed during the period and potential effects of those arrangements on shareholders, effect of compensation cost arising from equity-based payment arrangements on the income statement, method of estimating the fair value of the goods or services received, or the fair value of the equity instruments granted, during the period, cash flow effects resulting from equity-based payment arrangements and, for registrants that accelerate vesting of out of the money share options, reasons for the decision to accelerate.

+ References+ Details

- Definition

Tabular disclosure of option exercise prices, by grouped ranges, including the upper and lower limits of the price range, the number of shares under option, weighted average exercise price and remaining contractual option terms.

+ References+ Details