Note O - Commitments, Contingencies and Other (Detail) - (Table 3) (USD $) In Thousands, unless otherwise specified	12 Months Ended
Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Balance at	$ 15,258	$ 13,682	$ 11,301
Charged to reserve	0	0	0
Increase in reserve	2,961	1,576	2,381
Balance at	$ 18,219	$ 15,258	$ 13,682

A valuation allowance for financing receivables that are expected to be uncollectible.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 310

-SubTopic 10

-Section 50

-Paragraph 11B

-URI http://asc.fasb.org/extlink&oid=6965416&loc=SL6953423-111524

-Subparagraph (c)(1)

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- Definition

Charge to expense for financing receivables that are expected to be uncollectible.

+ References

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- Definition

Reduction to the allowance for credit losses related to financing receivables deemed uncollectible.

+ References

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