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ACCOUNTS PAYABLE AND ACCRUED LIABILITIES (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
ACCOUNTS PAYABLE AND ACCRUED LIABILITIES
Accounts payable, principally trade	$ 136,941	$ 108,973
Accrued employee compensation costs	120,694	114,721
Customer deposits and other unearned income	42,148	25,326
Other accrued liabilities	80,886	86,161
Total	$ 380,669	$ 335,181

Carrying value as of the balance sheet date of obligations incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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- Definition

Carrying value as of the balance sheet date of obligations incurred through that date and payable arising from transactions not otherwise specified in the taxonomy. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

+ References+ Details