Segment Information (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Segment Information
Total revenues	$ 215,057	$ 211,216	$ 654,993	$ 646,060
Earnings before interest, taxes, amortization, and restructuring	531	4,454	11,305	16,523
Amortization of intangible assets		(157)		(482)
Restructuring charges	(14,000)		(14,953)
OPERATING INCOME (LOSS) FROM CONTINUING OPERATIONS	(13,469)	4,297	(3,648)	16,041
Operating segment | International
Segment Information
Total revenues	110,879	102,227	337,489	321,740
Earnings before interest, taxes, amortization, and restructuring	4,577	3,890	15,528	16,798
Operating segment | North America
Segment Information
Total revenues	104,865	109,346	318,793	325,319
Earnings before interest, taxes, amortization, and restructuring	8,506	7,825	25,104	22,443
Operating segment | Other
Segment Information
Total revenues	833	802	2,575	2,309
Earnings before interest, taxes, amortization, and restructuring	44	196	162	326
Intersegment
Segment Information
Total revenues	(1,520)	(1,159)	(3,864)	(3,308)
Corporate expenses
Segment Information
Earnings before interest, taxes, amortization, and restructuring	(12,596)	(7,517)	(29,489)	(22,482)
Unallocated results of discontinued operations
Segment Information
Earnings before interest, taxes, amortization, and restructuring		$ 60		$ (562)