Consolidated Balance Sheets Parenthetical (USD $) In Thousands, except Share data, unless otherwise specified			12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2012 Minimum Furniture, Fixtures & Equipment and Software	Dec. 31, 2012 Maximum Furniture, Fixtures & Equipment and Software
Estimated useful asset life			3 years	14 years
Allowance for doubtful accounts	$ 6,868	$ 7,764
Common stock stated value per share	$ 20	$ 20
Authorized	20,000,000	20,000,000
Issued to voting trustees	12,844,501	10,611,982
Issued to shareholders	2,740,489	2,285,255
In treasury, at cost	84,566	15,725
Outstanding Common Stock	15,500,424	12,881,512
Common Stock, Shares Subscribed	660,775	610,949
Subscripton Receivable	(660,775)	(610,949)