OTHER BALANCE SHEET INFORMATION

The table below presents comparative detailed information about other current assets at June 30, 2019 and December 31, 2018 (in thousands):




	June 30, 2019		December 31, 2018
Other current assets:
Prepaid current assets	$	6,096	$	11,207
Reinsurance receivable	7,270		6,365
Operating lease right-of-use assets	2,606		—
Other	4,913		501
Total	$	20,885	$	18,073

The table below presents comparative detailed information about other non-current assets at June 30, 2019 and December 31, 2018 (in thousands):




	June 30, 2019		December 31, 2018
Other non-current assets:
Reinsurance receivable	$	7,600	$	6,743
Deposits	1,117		1,309
Operating lease right-of-use assets	3,456		—
Other	387		510
Total	$	12,560	$	8,562

The table below presents comparative detailed information about other current liabilities at June 30, 2019 and December 31, 2018 (in thousands):




	June 30, 2019		December 31, 2018
Other current liabilities:
Accrued payroll, taxes and employee benefits	$	20,206	$	19,346
Accrued operating expenditures	14,041		15,861
Income, sales, use and other taxes	4,781		8,911
Self-insurance reserve	26,991		25,358
Accrued interest	6,769		7,105
Accrued insurance premiums	1,730		5,651
Unsettled legal claims	2,645		4,356
Accrued severance	—		83
Operating leases	2,359		—
Other	2,629		706
Total	$	82,151	$	87,377

The table below presents comparative detailed information about other non-current liabilities at June 30, 2019 and December 31, 2018 (in thousands):




	June 30, 2019		December 31, 2018
Other non-current liabilities:
Asset retirement obligations	$	9,099	$	9,018
Environmental liabilities	2,301		2,227
Accrued sales, use and other taxes	17,005		17,024
Operating leases	3,803		—
Other	79		67
Total	$	32,287	$	28,336