CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Net income	$ 19,710	$ 23,044	$ 12,460
Unrealized holding gain arising during the period, net of tax effect of $215, $115, $0	336	180	0
Less: reclassification adjustment for gains included in net income, net of tax effect of $330, $0, $0	(516)	0	0
Interest rate swap, net of tax effect of $696, $451, $451	(1,093)	(708)	708
Foreign currency translation adjustment, net of tax effect of $15, $44, $0	(59)	(182)	237
Total other comprehensive income (loss)	(1,332)	(710)	945
Total comprehensive income	$ 18,378	$ 22,334	$ 13,405