Subsequent Event (Details) - Wells Fargo Bank, National Association - USD ($) $ in Thousands								9 Months Ended
	Oct. 10, 2017	Oct. 02, 2017	Jul. 31, 2017	Jul. 07, 2017	Apr. 03, 2017	Dec. 02, 2016	Jan. 05, 2016	Sep. 30, 2017
Subsequent Event [Line Items]
Proceeds from lines of credit								$ 37,000
Revolving Credit Facility
Subsequent Event [Line Items]
Proceeds from lines of credit								$ 37,000
Line of Credit | Revolving Credit Facility
Subsequent Event [Line Items]
Proceeds from lines of credit			$ 12,000	$ 15,000	$ 10,000	$ 40,000	$ 55,000
Line of Credit | Revolving Credit Facility | Subsequent Event
Subsequent Event [Line Items]
Proceeds from lines of credit	$ 10,000	$ 12,000