Accrued Restructuring - Restructuring Reserve Rollforward (Details) (USD $)	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Restructuring Cost and Reserve [Line Items]
Severance Costs	$ 853,000	$ 517,000
Facility Reductions	6,000	0
Business Combination, Integration Related Costs	453,000	0
Business Combination, Contingent Consideration Arrangements, Change in Amount of Contingent Consideration, Liability	0	740,000
Balance accrued as of December 31, 2012	2,747,000
Restructuring Charges	911,000
Disposal Group, Not Discontinued Operation, Gain (Loss) on Disposal	0	1,575,000
Restructuring Reserve, Accrual Adjustment	(64,000)
Expenditures	(1,241,000)
Balance accred as of March 31, 2013	2,353,000
Restructuring Reserve, Noncurrent	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	911,000
Restructuring Reserve, Accrual Adjustment	(58,000)
Expenditures	(1,092,000)
Balance accred as of March 31, 2013	1,547,000
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	(149,000)
Balance accred as of March 31, 2013	$ 806,000