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Office Closing and Exit Activities (Details Textuals) (USD $) In Thousands, unless otherwise specified	1 Months Ended	3 Months Ended	6 Months Ended	12 Months Ended
	Mar. 31, 2010	Mar. 31, 2010	Jun. 30, 2010	Dec. 31, 2010
Restructuring and Related Cost [Line Items]
Increasing in termination costs for stock compensation expense			$ 7,938
Office Closing and Exit Activities (Textuals)
Percentage of sale closed	90.00%
Accrued severance costs		5,100		5,138
Employee Severance [Member]
Restructuring and Related Cost [Line Items]
Increasing in termination costs for stock compensation expense		$ 2,800

The charge against earnings in the period, comprised of costs associated with restructuring activities not otherwise specified in the taxonomy pursuant to a duly authorized plan, excluding a discontinued operation as defined by generally accepted accounting principles. Costs of such activities include those for one-time termination benefits, termination of an operating lease or other contract, consolidating or closing facilities, and relocating employees, but excludes costs associated with the retirement of a long-lived asset and severance costs associated with established compensation plans.

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