Note 3. Income Taxes (Detail) - Major components of income tax provision (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Current:
Federal	$ (144)	$ 4,111	$ 3,528	$ 4,111
State	2	478	553	478
Foreign	115	115	230	230
Total current income tax provision (benefit)	(27)	4,704	4,311	4,819
Deferred:
Federal and state deferred income tax provision	720	14,938	3,697	38,319
Total income tax provision	$ 693	$ 19,642	$ 8,008	$ 43,138