Supplemental Disclosures of Cash Flow Information (Tables)

12 Months Ended

Dec. 31, 2016

Supplemental Cash Flow Elements [Abstract]

Schedule of Cash Flow, Supplemental Disclosures

Supplemental disclosures of cash flow information are as follows:

Year ended December 31,	2016	2015	2014
	(in thousands
Cash paid for income taxes, net of refunds received	7,362	9,785	20,092
Cash paid for interest	154,527	109,966	109,376