STOCK-BASED PLANS (Tables)

6 Months Ended

Jun. 30, 2018

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

Summary of stock option plan activity

The following table summarizes the Company's stock option plan activity for the six months ended June 30, 2018:

	Stock Options		Weighted Average Exercise Price
Stock Options outstanding at December 31, 2017	783,182		$	90.22
Granted	245,500		125.49
Exercised	(143,636	)	64.40
Forfeited	(29,500	)	118.15
June 30, 2018	855,546		$	103.71

Summary of restricted stock activity

The following table summarizes restricted stock activity for the six months ended June 30, 2018:

	Restricted Stock		Weighted Average Grant Date Fair Value
Restricted stock outstanding at December 31, 2017	354,519		$	89.00
Granted	141,332		82.96
Vested	(8,255	)	124.89
Forfeited	(9,393	)	83.39
Restricted stock outstanding at June 30, 2018	478,203		$	86.71