Other Accrued Expenses (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Payables And Accruals [Abstract]
Deposits and amounts due to customers	$ 2,688	$ 9,351
Dividends payable	4,260	4,190
Accrued litigation and professional fees	452	308
Other accrued expenses	5,683	9,379
Other accrued expenses, Total	$ 13,083	$ 23,228