STOCK-BASED PLANS (Tables)

3 Months Ended

Mar. 31, 2017

STOCK-BASED PLANS

Summary of stock option plan activity

	Stock Options	Weighted Average Exercise Price
Stock Options outstanding at December 31, 2016	1,176,640	$	78.87
Granted	30,000		116.58
Exercised	(227,847)		58.36
Forfeited	(27,500)		79.53
Stock Options outstanding at March 31, 2017	951,293		84.95

Summary of restricted stock activity

	Restricted Stock	Weighted Average Grant Date Fair Value
Restricted stock outstanding at December 31, 2016	289,112	$	88.88
Granted	90,451		75.45
Vested	—		—
Forfeited	(9,357)		90.58
Restricted stock outstanding at March 31, 2017	370,206		85.56