Supplemental Disclosures of Cash Flow Information and Noncash Activities (Tables)

3 Months Ended

Mar. 31, 2021

Additional Cash Flow Elements and Supplemental Cash Flow Information [Abstract]

Schedule of Cash Flow, Supplemental Disclosures [Table Text Block]

Supplemental disclosures of cash flow information are as follows:

	Three Months Ended March 31,
	2021		2020
	(in thousands)
Cash paid for income taxes, net of refunds received	$	24	$	—
Cash paid for interest	$	58,645	$	52,339