Legal Settlement Legal Settlement Charge (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Legal settlement disclosure [Abstract]
Legal award net of legal expenses		$ 5,300
Legal settlements, including amounts awarded in a dispute and charges/amounts paid out in a separate dispute.	$ 0	(5,261)	$ 0	$ 1,798
Legal settlement charge				6,500
LegalSettlementChargeForLegalFees				8,800
Legal Fees				700
Legal settlement accrual		$ 7,100		$ 7,100