Leases (Tables)

6 Months Ended

Jun. 30, 2019

Leases [Abstract]

Contractual Obligation, Fiscal Year Maturity [Table Text Block]

	Operating			Finance			Total
	(In thousands)
2019 (excluding the six months ended June 30, 2019)	$	5,408		$	23,722		$	29,130
2020	11,343			43,681			55,024
2021	10,056			61,946			72,002
2022	8,928			25,721			34,649
2023	6,759			18,614			25,373
Thereafter	45,164			47,754			92,918
Total lease payments	$	87,658		$	221,438		$	309,096
Less: Interest	(23,051		)	(24,208		)	(47,259		)
Present value of lease liabilities	$	64,607		$	197,230		$	261,837

	Operating		Finance
	(In thousands)
2019	$	11,295	$	46,998
2020	9,550		51,943
2021	8,251		57,881
2022	7,282		21,842
2023	5,397		15,587
2024 and thereafter	37,841		40,447
Total	$	79,616	$	234,698
Less: Interest on finance leases			(22,746		)
Total principal payable on finance leases			$	211,952

Lessor, Operating Lease, Payments to be Received, Maturity [Table Text Block]

Lease, Cost [Table Text Block]

	Three Months Ended June 30, 2019		Six Months Ended June 30, 2019
	(In thousands)
Amortization of leased assets	$	10,348	$	21,312
Interest on lease liabilities	1,453		3,284
Total finance lease cost	11,801		24,596
Operating lease cost	3,074		6,268
Variable lease cost	420		792
Total lease cost	$	15,295	$	31,656