Organization and Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2013

Supplemental Disclosures of Cash Flow Information [Abstract]

Schedule of Supplemental Disclosures of Cash Flow Information

	For the years ended December 31,
	2013		2012		2011
	(in thousands)
Cash paid during the year for interest, net of amounts capitalized	$	36,267	$	17,311	$	19,159
Cash paid during the year for income taxes		18,787		818		4,198
Increase (decrease) in noncash property additions		(12,730)		(26,240)		30,389