Accrued Restructuring - Restructuring Reserve Rollforward (Details) (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Restructuring Cost and Reserve [Line Items]
Severance Costs	$ 258,000	$ 2,916,000	$ 1,514,000	$ 4,081,000
Restructuring and Business Combination Related Expenses, Non-Recurring Legal Expenses	372,000	187,000	421,000	187,000
Business Combination, Integration Related Costs	728,000	328,000	1,671,000	328,000
Facility Reductions	0	(155,000)	(6,000)	(155,000)
Business Combination, Contingent Consideration Arrangements, Change in Amount of Contingent Consideration, Liability	(29,000)	(395,000)	(156,000)	(1,740,000)
Disposal Group, Not Discontinued Operation, Loss (Gain) on Write-down	0	0	0	2,868,000
Balance accrued as of December 31, 2013			2,747,000
Restructuring Charges			1,620,000
Disposal Group, Not Discontinued Operation, Gain (Loss) on Disposal	0	0	0	1,532,000
Restructuring Reserve, Accrual Adjustment			(112,000)
Expenditures			(3,143,000)
Balance accrued as of September 30, 2014	1,112,000		1,112,000
Restructuring Reserve, Noncurrent	500,000		500,000
Severance, Payroll Taxes and Other Employee Benefits [Member]
Restructuring Cost and Reserve [Line Items]
Balance accrued as of December 31, 2013			1,786,000
Restructuring Charges			1,620,000
Restructuring Reserve, Accrual Adjustment			(106,000)
Expenditures			(2,815,000)
Balance accrued as of September 30, 2014	485,000		485,000
Lease Abandonment Charges [Member]
Restructuring Cost and Reserve [Line Items]
Balance accrued as of December 31, 2013			961,000
Restructuring Charges			0
Restructuring Reserve, Accrual Adjustment			(6,000)
Expenditures			(328,000)
Balance accrued as of September 30, 2014	$ 627,000		$ 627,000