Summary of Significant Accounting Policies (Restructuring Costs) (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2015 USD ($) Facility Employees
Restructuring Reserve [Roll Forward]
Restructuring accrual beginning balance	$ 0
Provision	1,496
Cash payments	(467)
Restructuring accrual ending balance	1,029
Employee Severance [Member]
Restructuring Reserve [Roll Forward]
Restructuring accrual beginning balance	0
Provision	1,044
Cash payments	(390)
Restructuring accrual ending balance	654
Other Restructuring [Member]
Restructuring Reserve [Roll Forward]
Restructuring accrual beginning balance	0
Provision	452
Cash payments	(77)
Restructuring accrual ending balance	$ 375
Distributions Segment [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring, number of positions eliminated | Employees	63
Restructuring, number of facilities eliminated | Facility	4