Other Accrued Liabilities (Schedule of Other Accrued Liabilities) (Details) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Other Accrued Liabilities [Abstract]
Shareholder litigation accrual		$ 9,500
Customer deposits	$ 9,164	7,742
Accrued wages and salaries	4,093	4,962
Sales return reserve	3,766	3,080
Payroll and sales taxes	3,784	2,691
Other current liabilities	4,886	5,486
Total other accrued liabilities	$ 25,693	$ 33,461