Accrued Liabilities an Other Long-term Liabilities (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Accrued Liabilities [Abstract]
Salaries and benefits	$ 21,116	$ 20,538
Incentive compensation	15,221	42,913
Accruedsupplychainrestructuring	23,119	0
Operating Lease, Liability, Current	7,362	0
Accrued Professional Fees	4,782	15,996
Accrued Product Field Action.	2,096	5,316
Consigned inventory	0	1,118
Third-party Inventory	0	1,089
Legal accrual	826	1,400
Accrued sales taxes	2,615	2,941
Warranties and returns	782	1,124
Deferred revenue	4,761	3,814
Accrued other taxes	4,054	3,213
Outside commissions	3,942	3,977
Accrued freight	11,238	10,953
Restructuring accrual	5,459	1,046
UnfavorablecontractliabilityST	1,935	0
Contract settlement	1,667	2,083
Accrued research and development expense	0	1,451
Other	6,801	9,848
Accrued liabilities	$ 117,776	$ 128,820