Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
Current assets:
Cash and cash equivalents	$ 9,651	$ 13,732
Trade accounts receivable, less allowance for doubtful accounts of $2,052 in 2012 and $1,926 in 2011	93,696	99,967
Inventories	22,121	24,672
Prepaid expenses and other current assets	10,156	14,894
Income tax receivable	3,171	5,620
Deferred income taxes	235	682
Total current assets	139,030	159,567
Property and equipment, net	65,491	60,064
Goodwill, net	211,903	205,365
Other intangible assets, net:
Customer relationships	29,010	41,709
Other	633	354
Deferred income taxes	5,983	5,933
Other assets	6,771	6,521
Total assets	458,821	479,513
Current liabilities:
Trade accounts payable	18,137	18,366
Accrued expenses	57,080	60,636
Deferred income taxes	2,482	3,209
Income taxes	609	511
Current portion of long-term debt	4,262	21,442
Total current liabilities	82,570	104,164
Long-term liabilities:
Long-term debt	78,724	73,737
Deferred income taxes	3,208	13,476
Other long-term liabilities	43,536	14,211
Total long-term liabilities	125,468	101,424
Stockholders' equity:
Common stock, $0.008 par value, 40,000,000 shares authorized, 31,172,666 and 30,766,517 shares issued at December 31, 2012 and 2011, respectively, 26,113,544 and 25,703,125 shares outstanding at December 31, 2012 and 2011, respectively	227	225
Additional paid-in capital	209,556	203,811
Retained earnings	93,897	125,619
Accumulated other comprehensive income, net	11,859	9,080
Treasury stock, at cost, 5,059,122 and 5,063,392 shares of common stock at December 31, 2012 and 2011, respectively	(64,756)	(64,810)
Total stockholders' equity	250,783	273,925
Total liabilities and stockholders' equity	$ 458,821	$ 479,513