Amount of any reversal and other adjustment made during the period to the amount of a previously accrued liability for a specified type of restructuring cost, excluding adjustments for costs incurred during the period, costs settled during the period, and foreign currency translation adjustments.

Carrying amount as of the balance sheet date of known and estimated obligations associated with exit from or disposal of business activities or restructurings pursuant to a duly authorized plan, which are expected to be paid in the next twelve months or in the normal operating cycle if longer. Costs of such activities include those for one-time termination benefits, termination of an operating lease or other contract, consolidating or closing facilities, relocating employees, and costs associated with an ongoing benefit arrangement, but excludes costs associated with the retirement of a long-lived asset.

+ References+ Details

Restructuring and Other Related (Benefits) Charges (Details 3) (USD $)	3 Months Ended		9 Months Ended			3 Months Ended			3 Months Ended	9 Months Ended		3 Months Ended	9 Months Ended
	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2011	Sep. 30, 2010	Dec. 31, 2010	Sep. 30, 2011 2011 Restructuring Event [Member]	Mar. 31, 2011 2011 Restructuring Event [Member]	Dec. 31, 2010 2011 Restructuring Event [Member]	Mar. 31, 2010 2010 Restructuring Event [Member]	Sep. 30, 2011 2010 Restructuring Event [Member]	Dec. 31, 2010 2010 Restructuring Event [Member]	Sep. 30, 2011 2001, 2002, 2003 - Restructuring Events [Member]	Sep. 30, 2011 2001, 2002, 2003 - Restructuring Events [Member]	Dec. 31, 2010 2001, 2002, 2003 - Restructuring Events [Member]
Restructuring and Other Related (Benefits) Charges (Textual) [Abstract]
Accrued Restructuring						$ 878,000		$ 0		$ 61,000	$ 242,000	$ 676,000	$ 676,000	$ 2,887,000
Restructuring charges	1,191,000	34,000	6,777,000	448,000		900,000	5,700,000		900,000				400,000
Net restructuring benefits related to events													200,000
Net restructuring benefits related to events										Less than 0.1 million
Remaining accrued restructuring balance	1,179,000		1,179,000		3,129,000	900,000				100,000		700,000	700,000
Reduction of restructuring reserve due to future income from sub leasing agreement												300,000
2011 Charges, net										$ (23,000)			$ 179,000