Schedule II Valuation and Qualifying Accounts (Table) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Movement in Valuation Allowances and Reserves [Roll Forward]
Valuation Allowances And Reserves, Balance At Beginning Of Period	$ 4,307	$ 4,276	$ 931
Valuation Allowances And Reserves, Charged To Cost And Expense	1,924	1,705	1,195
Valuation Allowances And Reserves, Deductions	(167)	(1,674)
Valuation Allowances and Reserves, Recoveries			2,150
Valuation Allowances And Reserves, Balance At End Of Period	$ 6,064	$ 4,307	$ 4,276