Consolidated Balance Sheets (unaudited) (USD $) In Thousands	Sep. 30, 2011	Dec. 31, 2010
Current assets:
Cash and cash equivalents	$ 10,620	$ 36,889
Trade accounts receivable, less allowance for doubtful accounts of $1,717 at September 30, 2011 and $1,525 at December 31, 2010	86,154	95,207
Inventories	24,419	18,250
Prepaid expenses and other current assets	11,201	9,356
Income tax receivable	1,531	2,943
Deferred income taxes	1,108	347
Total current assets	135,033	162,992
Property and equipment, less accumulated depreciation of $107,938 at September 30, 2011 and $105,342 at December 31, 2010	56,872	48,684
Goodwill, net	192,629	193,626
Other intangible assets, net:
Customer relationships	33,126	36,461
Other	465	817
Deferred income taxes	4,998	868
Other assets	5,796	6,411
Total assets	428,919	449,859
Current liabilities:
Trade accounts payable	17,001	21,930
Accrued expenses	55,138	64,007
Deferred income taxes	3,255	3,260
Income taxes payable	1,476	1,038
Current portion of long-term debt	48,687	29,587
Total current liabilities	125,557	119,822
Long-term liabilities:
Long-term debt	6,396	37,080
Deferred income taxes	9,154	9,135
Other long-term liabilities	16,820	19,696
Total long-term liabilities	32,370	65,911
Stockholders' equity:
Common stock, $0.008 par value, 40,000,000 shares authorized, 30,684,172 and 30,506,252 shares issued at September 30, 2011 and December 31, 2010, respectively; 25,627,504 and 25,761,334 shares outstanding at September 30, 2011 and December 31, 2010,respectively	225	224
Additional paid-in capital	202,913	200,205
Retained earnings	121,901	113,258
Accumulated comprehensive income, net	10,686	11,247
Treasury stock, at cost, 5,056,668 and 4,744,918 shares of common stock at September 30, 2011 and December 31, 2010, respectively	(64,733)	(60,808)
Total stockholders' equity	270,992	264,126
Total liabilities and stockholders' equity	$ 428,919	$ 449,859