Restructuring and Exit Costs (Narrative) (Details)	3 Months Ended	12 Months Ended
	Jun. 30, 2015 USD ($)	Dec. 31, 2015 USD ($) ft²	Dec. 31, 2014 USD ($)	Dec. 31, 2013 USD ($)
Restructuring Cost and Reserve [Line Items]
Total expected restructuring charges		$ 1,400,000
Amount paid in restructuring expenses		1,010,000
Liability recorded related to the exit of leased space		2,647,000
Restructuring and exit costs	$ 2,300,000	2,512,000	$ 0	$ 0
Accelerated depreciation expense		434,000
Restructuring liability		1,337,000
Minimum
Restructuring Cost and Reserve [Line Items]
Total expected restructuring charges		2,600,000
Maximum
Restructuring Cost and Reserve [Line Items]
Total expected restructuring charges		3,300,000
Facility Closing
Restructuring Cost and Reserve [Line Items]
Amount paid in restructuring expenses		$ 0
Square feet of manufacturing facility | ft²		60,000
Liability recorded related to the exit of leased space		$ 1,208,000
Restructuring liability		1,043,000
Facility Closing | Minimum
Restructuring Cost and Reserve [Line Items]
Total expected restructuring charges		1,200,000
Facility Closing | Maximum
Restructuring Cost and Reserve [Line Items]
Total expected restructuring charges		1,900,000
Employee Severance Costs
Restructuring Cost and Reserve [Line Items]
Total expected restructuring charges		1,300,000
Amount paid in restructuring expenses		1,010,000
Liability recorded related to the exit of leased space		1,439,000
Restructuring and exit costs		1,300,000
Restructuring liability		294,000
Employee Relocation
Restructuring Cost and Reserve [Line Items]
Total expected restructuring charges		125,000
Accelerated Depreciation
Restructuring Cost and Reserve [Line Items]
Total expected restructuring charges		560,000
Capital Expenditures
Restructuring Cost and Reserve [Line Items]
Total expected restructuring charges		1,600,000
Other Current Liabilities | Facility Closing
Restructuring Cost and Reserve [Line Items]
Restructuring liability		231,000
Other Noncurrent Liabilities | Facility Closing
Restructuring Cost and Reserve [Line Items]
Restructuring liability		$ 812,000