Acquisitions Purchase Considerations (Details) - Gatherco [Member] - USD ($) $ in Thousands		6 Months Ended
	Apr. 01, 2015	Jun. 30, 2015
Business Acquisition [Line Items]
Business Acquisition, Equity Interest Issued or Issuable, Value Assigned	$ 30,200	$ 30,164
Payments to Acquire Businesses, Gross	27,500	27,494
Long-term debt	1,696	1,696
Business Combination, Consideration Transferred		57,658
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Cash and Equivalents	$ (6,800)	(6,806)
Gross [Member]
Business Acquisition [Line Items]
Business Combination, Consideration Transferred		59,354
Net [Member]
Business Acquisition [Line Items]
Business Combination, Consideration Transferred		$ 52,548