Balance Sheet Components Accrued Liabilities (Details) - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Notes To Financial Statements [Abstract]
Accrued payroll and benefits	$ 131,337	$ 127,109
Accrued expenses	61,858	39,323
Accrued professional fees	15,554	6,752
Current operating lease liabilities	13,706	0
Accrued warranty	10,802	8,551
Accrued property, plant and equipment	10,241	8,193
Accrued sales return reserve	9,390	6,534
Accrued customer credits and deposits	7,181	12,439
Accrued sales tax and value added tax	7,135	6,276
Accrued sales rebate	7,068	5,668
Accrued income taxes	5,885	5,752
Other accrued liabilities	5,975	8,082
Total accrued liabilities	$ 286,132	$ 234,679