EARNINGS PER COMMON SHARE (Tables)

12 Months Ended

Dec. 31, 2015

Earnings Per Share [Abstract]

Components of Basic and Diluted Earnings per Share

The components of basic and diluted earnings per share were as follows:

	Years Ended December 31,
	2015				2014				2013
(In Thousands Except Share and Per Share Data)	Basic		Diluted		Basic		Diluted		Basic		Diluted
Net income	$	89,126	$	89,126	$	59,137	$	59,137	$	76,140	$	76,140
Weighted-average common shares outstanding	25,047,405		25,047,405		25,230,854		25,230,854		25,325,695		25,325,695
Add dilutive effect of restricted stock awards	—		122,840		—		114,313		—		59,849
Add dilutive effect of stock options	—		65,751		—		148,496		—		145,831
Weighted-average common shares	25,047,405		25,235,996		25,230,854		25,493,663		25,325,695		25,531,375
Earnings per common share	$	3.56	$	3.53	$	2.34	$	2.32	$	3.01	$	2.98
Awards excluded from diluted calculation(1)	—		343,390		—		835,610		—		638,478

(1) Outstanding awards that are not "in-the-money" are excluded from the diluted earnings per share calculation because the effect of including them would have been anti-dilutive.