Accrued Liabilities

9 Months Ended

Sep. 30, 2018

Accrued Liabilities

Accrued Liabilities

(6)  Accrued Liabilities

Accrued liabilities as of December 31, 2017 and September 30, 2018 consisted of the following items (in thousands):

	December 31,		September 30,
	2017		2018
Capital expenditures	$	63,286		48,067
Operating expenses		29,905		35,607
Interest expense		10,508		1,988
Other		2,307		2,596
Total accrued liabilities	$	106,006		88,258