Accrued Restructuring - Restructuring Reserve Rollforward (Details) (USD $)	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Restructuring Cost and Reserve [Line Items]
Severance Costs	$ 403,000	$ (605,000)	$ 1,256,000	$ 1,165,000
Facility Reductions	0	0	(6,000)	0
Business Combination, Integration Related Costs	539,000	0	992,000	0
Business Combination, Contingent Consideration Arrangements, Change in Amount of Contingent Consideration, Liability	127,000	(648,000)	127,000	(1,345,000)
Balance accrued as of December 31, 2012			2,747,000
Restructuring Charges			1,333,000
Disposal Group, Not Discontinued Operation, Gain (Loss) on Disposal	0	(43,000)	0	1,532,000
Restructuring Reserve, Accrual Adjustment			(83,000)
Expenditures			(2,016,000)
Balance accred as of March 31, 2013	1,981,000		1,981,000
Restructuring Reserve, Noncurrent	200,000		200,000
Severance, Payroll Taxes and Other Employee Benefits [Member]
Restructuring Cost and Reserve [Line Items]
Balance accrued as of December 31, 2012			1,786,000
Restructuring Charges			1,333,000
Restructuring Reserve, Accrual Adjustment			(77,000)
Expenditures			(1,721,000)
Balance accred as of March 31, 2013	1,321,000		1,321,000
Lease Abandonment Charges [Member]
Restructuring Cost and Reserve [Line Items]
Balance accrued as of December 31, 2012			961,000
Restructuring Charges			0
Restructuring Reserve, Accrual Adjustment			(6,000)
Expenditures			(295,000)
Balance accred as of March 31, 2013	$ 660,000		$ 660,000