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SUMMARY OF SIGNIFICANT ACCOUNTING AND BUSINESS POLICIES (Tables) | 12 Months Ended
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Dec. 31, 2014
SUMMARY OF SIGNIFICANT ACCOUNTING AND BUSINESS POLICIES [Abstract] |
Schedule of Changes in Allowance | Changes in this allowance for 2014, 2013 and 2012 were as follows:
| Year Ended December 31,
| 2014 |  | 2013 |  | 2012
Balance at beginning of year | $ 8,798 |  | $ 7,204 |  | $ 6,202
Charged to costs and expenses | 2,365 |  | 2,018 |  | 1,283
Charged to other accounts | 1,1402 |  | 5602 |  | 4542
Deductions | (3,590)1 |  | (984)1 |  | (735)1
Balance at end of year | $ 8,713 |  | $ 8,798 |  | $ 7,204
(1) Uncollectible accounts written off, net of recoveries (2) Includes allowance for doubtful accounts from acquisitions
Principal Estimated Useful Lives Used in Determining Depreciation | The principal estimated useful lives used in determining depreciation are as follows:
Buildings | 20-39 years
Building improvements | 10-20 years
Furniture, fixtures and equipment | 3-20 years
Leasehold improvements | Shorter of estimated useful life or related lease term

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- Definition Tabular disclosure of the useful life of physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale. Examples include land, buildings, machinery and equipment, and other types of furniture and equipment including, but not limited to, office equipment, furniture and fixtures, and computer equipment and software. + References No definition available. + Details
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- Definition Tabular disclosure for any allowance and reserve accounts (their beginning and ending balances, as well as a reconciliation by type of activity during the period). + References No definition available. + Details
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