EARNINGS PER SHARE (Details) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended				6 Months Ended
	Jun. 30, 2013		Jun. 30, 2012		Jun. 30, 2013		Jun. 30, 2012
Earnings Per Share [Abstract]
Net income from continuing operations	$ 8,108		$ 6,693		$ 15,289		$ 12,919
Weighted-average shares outstanding - basic	46,204,000		48,103,000		46,146,000		48,279,000
Add effect of dilutive securities:
Unvested restricted shares	506,000		448,000		467,000		451,000
Stock options	10,000		0		5,000		10,000
Weighted-average shares outstanding - diluted	46,720,000		48,551,000		46,618,000		48,740,000
Basic net income per share from continuing operations	$ 0.18	[1]	$ 0.14	[1]	$ 0.33	[1]	$ 0.27	[1]
Diluted net income per share from continuing operations	$ 0.17	[1]	$ 0.14	[1]	$ 0.33	[1]	$ 0.27	[1]
Anti-dilutive shares excluded from diluted shares outstanding	890		117,077		45,361		149,913

[1] Column totals may not sum due to the effect of rounding on EPS.