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BUSINESS REORGANIZATION EXPENSES REORGANIZATION EXPENSES BY PLAN (Details) (USD $)	12 Months Ended			1 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Apr. 30, 2014	Dec. 31, 2014
Restructuring Cost and Reserve [Line Items]
Business reorganization expenses	$ 3,789,000us-gaap_BusinessExitCosts1	$ 5,440,000us-gaap_BusinessExitCosts1	$ 7,506,000us-gaap_BusinessExitCosts1
Previous Years Reorganization Plan [Member]
Restructuring Cost and Reserve [Line Items]
Business reorganization expenses	1,140,000	5,440,000	7,506,000
Two Thousand Fourteen Plan [Member]
Restructuring Cost and Reserve [Line Items]
Board approved reorganization plan, amount				7,000,000
Business reorganization expenses	2,649,000	0	0
Restructuring and Related Cost, Number of Positions Eliminated	41
Two Thousand Fourteen Subsequent Approval [Member]
Restructuring Cost and Reserve [Line Items]
Board approved reorganization plan, amount					$ 4,100,000
2012 Plan
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Number of Positions Eliminated	16

Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Includes, but is not limited to, one-time termination benefits, termination of an operating lease or other contract, consolidating or closing facilities, and relocating employees, and termination benefits associated with an ongoing benefit arrangement. Excludes expenses associated with special or contractual termination benefits, a discontinued operation or an asset retirement obligation.

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