STOCK-BASED COMPENSATION AND EMPLOYEE BENEFIT PLANS (Tables)

12 Months Ended

Dec. 31, 2015

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

Schedule of Share-based Compensation, Restricted Stock and Restricted Stock Units Activity

The following table summarizes information about restricted stock awards for the year ended December 31, 2015:

Restricted Stock	Number of Shares		Weighted Average Grant-Date Fair Value
Unvested at January 1, 2015	383,021		$	56.51
Granted	153,934		54.16
Vested	(128,989	)	55.75
Forfeited	(45,348	)	56.46
Unvested at December 31, 2015	362,618		$	55.79

Schedule of Nonvested Performance-based Units Activity

The following table summarizes information about performance stock awards for the year ended December 31, 2015:

Performance Stock	Number of Shares		Weighted Average Grant-Date Fair Value
Unvested at January 1, 2015	143,875		$	60.94
Granted	168,186		56.40
Vested	(11,656	)	54.28
Forfeited	(113,131	)	61.18
Unvested at December 31, 2015	187,274		$	57.13