This excerpt taken from the ALL 10-K filed Feb 25, 2010.
Disclosures about Fair Value Measurements
In January 2010, the FASB issued new accounting guidance which expands disclosure requirements relating to fair value measurements. The guidance adds requirements for disclosing amounts of and reasons for significant transfers into and out of Levels 1 and 2 and requires gross rather than net disclosures about purchases, sales, issuances and settlements relating to Level 3 measurements. The guidance also provides clarification that fair value measurement
disclosures are required for each class of assets and liabilities. Disclosures about the valuation techniques and inputs used to measure fair value for measurements that fall in either Level 2 or Level 3 are also required. The new disclosures and clarifications of existing disclosures are effective for interim and annual periods beginning after December 15, 2009, except for disclosures about purchases, sales, issuances and settlements in the roll forward of activity in Level 3 fair value measurements, which are required for fiscal years beginning after December 15, 2010. Disclosures are not required for earlier periods presented for comparative purposes. The new guidance affects disclosures only and therefore its adoption will have no impact on the Company's results of operations or financial position.