Other Accrued Expenses (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Other Accrued Expenses (Tables) [Abstract]
Sales returns and allowances	$ 42,663	$ 36,680
Goods received, not yet invoiced	39,713	39,221
Restructuring reserve, current	2,538	7,352
Deferred proceeds - property sale	45,500	0
Other	99,246	70,977
Total other accrued expenses	$ 229,660	$ 154,230