Income Taxes (Tables)

12 Months Ended

Dec. 31, 2019

Income Tax Disclosure [Abstract]

Components of Income Tax Expense

	Years ended December 31,
	2019			2018			2017
				(In thousands)
Income before taxes:
United States operations	$	42,833		$	115,500		$	80,048
Foreign operations	109,577			114,580			17,940
Income before taxes	$	152,410		$	230,080		$	97,988
Income tax expense (benefit):
Currently payable
United States federal	$	21,893		$	31,730		$	(2,751	)
United States state and local	3,090			3,912			336
Foreign	13,859			16,968			26,807
	38,842			52,610			24,392
Deferred
United States federal	7,567			7,220			(17,741		)
United States state and local	(1,205		)	(31		)	(7,115		)
Foreign	(2,685		)	3,137			(4,155		)
	3,677			10,326			(29,011		)
Income tax expense (benefit)	$	42,519		$	62,936		$	(4,619	)

Effective Income Tax Rate Reconciliation from Continuing Operations

	Years Ended December 31,
	2019		2018		2017
Effective income tax rate reconciliation from continuing operations:
United States federal statutory rate	21.0	%	21.0	%	35.0	%
State and local income taxes	1.2	%	1.5	%	0.7	%
Impact of change in tax contingencies	—	%	(0.7	)%	1.1	%
Foreign income tax rate differences	(8.6	)%	(1.0	)%	15.1	%
Impact of change in deferred tax asset valuation allowance	9.2	%	0.3	%	0.7	%
Impact of non-taxable translation gain	—	%	—	%	(27.7	)%
Impact of non-taxable interest income	—	%	—	%	(5.6	)%
Domestic permanent differences and tax credits	5.1	%	1.9	%	(49.0	)%
Impact of tax reform	—	%	4.4	%	25.0	%
	27.9	%	27.4	%	(4.7	)%

Components of Deferred Income Tax Balances

	December 31,
	2019			2018
	(In thousands)
Components of deferred income tax balances:
Deferred income tax liabilities:
Plant, equipment, and intangibles	$	(96,254	)	$	(98,141	)
Deferred income tax assets:
Postretirement, pensions, and stock compensation	30,338			27,549
Reserves and accruals	16,371			20,641
Net operating loss and tax credit carryforwards	76,456			79,703
Valuation allowances	(50,420		)	(39,402		)
	72,745			88,491
Net deferred income tax liability	$	(23,509	)	$	(9,650	)

Summary of Net Operating Loss Carryforwards

The following tables summarize our net operating loss carryforwards and tax credit carryforwards as of December 31, 2019 by jurisdiction:

	Net Operating Loss  Carryforwards
	(In thousands)
Australia	$	9,589
Germany	16,768
Japan	330
Luxembourg	86
Netherlands	14,165
Other	57,567
United Kingdom	10,854
United States - Federal and various states	107,280
Total	$	216,639

Summary of Tax Credit Carryforwards

	Tax Credit Carryforwards
	(In thousands)
United States	$	45,877
Canada	1,187
Total	$	47,064

Reconciliation of Beginning and Ending Amounts of Unrecognized Tax Benefits

A reconciliation of the beginning and ending amounts of unrecognized tax benefits is as follows:

	2019			2018
	(In thousands)
Balance at beginning of year	$	6,591		$	6,881
Additions based on tax positions related to the current year	488			749
Additions for tax positions of prior years	—			1,292
Reductions for tax positions of prior years - Settlement	(300		)	(1,571		)
Reduction for tax positions of prior years - Statute of limitations	—			(760		)
Balance at end of year	$	6,779		$	6,591