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Redeemable Preferred Stock (Details) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2013
Reconciliation of the Company's 7% preferred stock activity
Beginning balance, Shares	958,333
Beginning balance, Value	$ 121,649
Stock-based compensation, Value	405
Stock-based compensation, shares
Repurchased preferred stock, Shares	(318)
Repurchased preferred stock, Value	(57)
Forfeited, Shares	(998)
Forfeited, Value
Ending balance, Shares	957,017
Ending balance, Value	$ 121,997

Equity impact of the value of stock that has been repurchased and retired during the period. The excess of the purchase price over par value can be charged against retained earnings (once the excess is fully allocated to additional paid in capital).

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