Note 18. Share-Based Compensation (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Allocated Share-Based Comp Expense	$ 35,121	$ 28,712	$ 44,899
Allocated Share-based Compensation Expense, Gross	34,460	28,085	42,973
Net amount released from inventory	661	627	1,926
Employee service share-based compensation, capitalized in inventory	2,100	2,700
Employee Service Share-based Compensation, Tax Benefit from Compensation Expense	6,200	32,900	15,300
Restricted and performance stock units [Member]
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Allocated Share-Based Comp Expense	32,309	25,076	40,393
Employee service share-based compensation, nonvested awards, total compensation cost not yet recognized	$ 37,700
Employee service share-based compensation, unrecognized compensation costs on nonvested awards, weighted average period of recognition (in years)	1 year 6 months
Unrestricted stock [Member]
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Allocated Share-Based Comp Expense	$ 1,757	1,677	1,326
Stock purchase plan [Member]
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Allocated Share-Based Comp Expense	394	1,332	1,254
Cost of sales [Member]
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Allocated Share-Based Comp Expense	6,809	7,598	10,713
Research and development [Member]
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Allocated Share-Based Comp Expense	5,740	3,284	4,109
Selling, general and administrative [Member]
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Allocated Share-Based Comp Expense	22,165	17,830	30,052
Production start-up [Member]
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Allocated Share-Based Comp Expense	$ 407	$ 0	$ 25