Note 6. Share-based Compensation Share-based Compensation Expense (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Share-based Arrangements with Employees and Nonemployees [Abstract]
Salaries, wages and employee benefits	$ 3,375	$ 5,505	$ 14,351	$ 16,699
Deferred income tax benefit	(1,317)	(2,144)	(5,597)	(6,501)
Net share-based compensation expense	$ 2,058	$ 3,361	$ 8,754	$ 10,198