Accounts Receivable, Net and Supplemental Balance-Sheet Information

The following comprises accounts receivable, net, and other amounts included in the balance sheet:



Accounts receivable, net	October 1, 2011		December 31, 2010
Accounts receivable	$	91,395	$	74,985
Receivables under contractual arrangements	15,194		7,557
	106,589		82,542

Less allowances for doubtful accounts	2,466		2,110

Accounts receivable, net	$	104,123	$	80,432

Receivables under contractual arrangements consist of work-in-process in accordance with the terms of contracts, primarily with utility services customers.


C.	Accounts Receivable, Net and Supplemental Balance-Sheet Information (continued)



Other current assets	October 1, 2011		December 31, 2010
Refundable income taxes	$	1,745	$	4,689
Deferred income taxes	6,454		6,813
Prepaid expenses	11,478		5,349
Other	886		1,614
Total	$	20,563	$	18,465



Other assets, noncurrent	October 1, 2011		December 31, 2010
Assets invested for self-insurance	$	15,417	$	11,475
Other	3,289		3,475
Total	$	18,706	$	14,950



Accrued expenses	October 1, 2011		December 31, 2010
Employee compensation	$	14,109	$	13,599
Accrued compensated absences	7,297		6,552
Self-insured medical claims	3,655		2,918
Customer advances, deposits	—		1,068
Taxes, other than income	1,952		2,380
Other	4,092		4,356
Total	$	31,105	$	30,873



Other current liabilities	October 1, 2011		December 31, 2010
Notes payable	$	—	$	1,988
Current portion of long-term debt	8,043		5,670
Self-insurance accruals	32,344		23,752
Total	$	40,387	$	31,410