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EQUITY (Tables)

12 Months Ended

Dec. 31, 2015

EQUITY

Schedule of shares repurchased from employees to satisfy tax obligations incurred in connection with the vesting of restricted stock awards and the exercise of stock options

				Aggregate
		Shares		Cost			Average
Year ended December 31,		Repurchased		(in thousands)			Repurchase Price
2013		163,222		$	8,103		$	49.64
2014		34,293			2,160			63.01
2015		37,567			2,705			72.01

Summary of stock option activity

		Year Ended December 31, 2014
							Weighted Average
							Remaining
		Number of		Weighted Avg.			Contractual		Aggregate
		Options		Exercise Price			Term (Years)		Intrinsic Value
Outstanding at January 1, 2014		401,287		$	36.63
Exercised		(43,034)			37.68
Forfeited—Unvested		(7,000)			34.22
Outstanding at December 31, 2014		351,253			36.55		5.0		$	10,901,529
Vested and expected to vest at December 31, 2014		351,142			36.56		5.0		$	10,987,590
Exercisable at December 31, 2014		290,128			36.81		4.6		$	8,929,815

		Year Ended December 31, 2015
							Weighted Average
				Weighted Avg.			Remaining
		Number of		Exercise			Contractual		Aggregate
		Options		Price			Term (Years)		Intrinsic Value
Outstanding at January 1, 2015		351,253		$	36.55
Granted		5,000			71.43
Exercised		(87,378)			32.14
Forfeited—Unvested		—			—
Outstanding at December 31, 2015		268,875			38.64		4.7		$	10,646,006
Vested and expected to vest at December 31, 2015		268,011			38.53		4.7		$	10,640,134
Exercisable at December 31, 2015		248,875			38.05		4.5		$	9,998,956

Summary of information relating to options granted and exercised

The following table summarizes information relating to options granted and exercised during the years ended December 31, 2013, 2014 and 2015 (in thousands, except fair value of options granted data):

		2013			2014			2015
Weighted-average fair value of options granted		$	N/A		$	N/A		$	30.70
Aggregate intrinsic value of options exercised			6,111			1,098			3,488
Cash proceeds received upon exercise of options			2,669			1,621			1,999
Excess tax benefits from share-based compensation			2,101			513			1,423

Schedule of weighted-average assumptions using Black-Scholes option-pricing model for estimating fair value of each option granted

		Options Granted in
		2015
Risk-free interest rate		1.55	%
Expected dividend yield		1.76	%
Expected life		6.25	years
Expected volatility		51.85	%

Summary of restricted stock activity

The following table summarizes restricted stock activity during the year ended December 31, 2014:

				Weighted Avg.
		Shares		Fair Value
Unvested as of January 1, 2014		154,519		$	44.04
Granted		109,318			64.73
Forfeited		(8,500)			51.44
Vested and issued		(60,194)			44.61
Unvested as of December 31, 2014		195,143		$	55.13

The following table summarizes restricted stock activity during the year ended December 31, 2015:

				Weighted Avg.
		Shares		Fair Value
Unvested as of January 1, 2015		195,143		$	55.13
Granted		93,864			66.26
Forfeited		(1,687)			65.18
Vested and issued		(68,919)			52.70
Unvested as of December 31, 2015		218,401		$	60.60

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Tabular disclosure of information pertaining to option granted and exercised during the period under share-based compensation plan.

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Tabular disclosure of treasury stock, including, but not limited to, average cost per share, description of share repurchase program, shares repurchased, shares held for each class of treasury stock.

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