Accrued Liabilities

12 Months Ended

Dec. 31, 2012

Payables and Accruals [Abstract]

Accrued Liabilities

Accrued Liabilities

Accrued liabilities include the following (in thousands):

	December 31,
	2012		2011
Accrued operating expenses	$	23,064	$	29,218
Accrued payroll, bonuses and employee benefits	39,386		42,035
Taxes payable, other than income	7,007		6,216
Accrued interest payable	17,428		1,381
Preferred dividends	484		411
Customer deposits	—		345
Other	227		230
	$	87,596	$	79,836