ACCOUNTS PAYABLE AND ACCRUED LIABILITIES (Tables)

12 Months Ended

Dec. 31, 2011

ACCOUNTS PAYABLE AND ACCRUED LIABILITIES.

Components of accounts payable and accrued liabilities

	2011		2010
Accounts payable, principally trade	$	108,973	$	123,818
Accrued employee compensation costs		114,721		95,330
Unearned income		17,164		15,800
Other accrued liabilities		94,323		92,808
Total	$	335,181	$	327,756