Variable Interest Entities (Tables)

9 Months Ended

Sep. 30, 2011

Variable Interest Entities

Carrying Amounts of Variable Interest Entities

	September 30, 2011						December 31, 2010
	Assets		Liabilities		Net carrying amount		Assets		Liabilities		Net carrying amount
Variable interest entity
TPDI	$	1,575	$	692	$	883	$	1,598	$	763	$	835
ADDCL	889		330		559		864		345		519
Total	$	2,464	$	1,022	$	1,442	$	2,462	$	1,108	$	1,354