CONDENSED CONSOLIDATED STATEMENTS OF FINANCIAL POSITION (Parenthetical) (USD $) In Thousands, except Share data	Sep. 30, 2011	Dec. 31, 2010
CONDENSED CONSOLIDATED STATEMENTS OF FINANCIAL POSITION
Trade receivables, short-term, allowance for doubtful accounts (in dollars)	$ 6,359	$ 6,694
Financed receivables, short-term, allowance for doubtful accounts (in dollars)	1,622	1,531
Financed receivables, long-term, allowance for doubtful accounts (in dollars)	$ 1,278	$ 1,169
Preferred stock, shares authorized	500,000	500,000
Preferred stock, shares issued	0	0
Common stock, par value (in dollars per share)	$ 1	$ 1
Common stock, shares authorized	170,000,000	170,000,000
Common stock, shares issued	146,291,631	147,181,472