Income Taxes (Tables)

12 Months Ended

Dec. 31, 2017

Income Tax Disclosure [Abstract]

Summary of Income from Continuing Operations before Income Taxes

Income from continuing operations before income taxes consisted of the following: 

	Year Ended December 31,
(in thousands)	2017		2016		2015
Foreign	$	82,919	$	33,611	$	35,571
United States		21,431		31,118		2,364
Income from continuing operations before income taxes	$	104,350	$	64,729	$	37,935

Summary of Significant Components of the Income Tax Provision From Continuing Operations

Significant components of the income tax provision from continuing operations are as follows:

	Year Ended December 31,
(in thousands)	2017		2016			2015
Current:
United States:
Federal	$	1,693	$	3,685		$	(876	)
State		2,573		1,716			1,558
Foreign		15,583		8,177			9,342
Total current		19,849		13,578			10,024
Deferred:
United States:
Federal		19,893		8,427			1,854
State		1,761		(598	)		(164	)
Foreign		4,395		(157	)		(1,221	)
Total deferred		26,049		7,672			469
Income tax expense	$	45,898	$	21,250		$	10,493

Reconciliation of Income Tax Expense

	Year Ended December 31,
(in thousands)	2017					2016					2015
Computed income tax expense at statutory federal income tax rate of 35%	$	36,522		35.0	%	$	22,655		35.0	%	$	13,277		35.0	%
State income taxes, net of federal benefit		1,160		1.1	%		292		0.5	%		1,713		4.5	%
Deemed mandatory repatriation state tax		1,206		1.2	%		—		—			—		—
Deemed mandatory repatriation federal tax, net of foreign tax credit		6,936		6.6	%		—		—			—		—
Remeasurement of deferred taxes due to reduction in U.S. tax rate *		8,000		7.7	%		—		—			—		—
Foreign tax rate differential		(5,031	)	(4.8	)%		(882	)	(1.4	)%		(1,181	)	(3.1	)%
U.S. tax on current year foreign earnings, net of foreign tax credits		(2,726	)	(2.6	)%		(373	)	(0.6	)%		(948	)	(2.5	)%
Change in valuation allowance		(796	)	(0.8	)%		1,230		1.9	%		(944	)	(2.5	)%
Other adjustments, net		627		0.6	%		(1,672	)	(2.6	)%		(1,424	)	(3.7	)%
Income tax expense	$	45,898		44.0	%	$	21,250		32.8	%	$	10,493		27.7	%

* Includes $0.6 million increase to the valuation allowance related to the remeasurement of deferred taxes due to the reduction in U.S. tax rate.

Schedule of Deferred Tax Assets and Liabilities

The components of deferred income tax assets and liabilities included in the Consolidated Balance Sheets are as follows:

	December 31,
(in thousands)	2017			2016
Deferred tax assets:
Tax credit carryforwards	$	6,654		$	11,380
Pension, compensation, and other employee benefits		15,173			22,868
Provisions for losses		5,826			10,235
Net operating loss carryforward		5,195			5,023
State income taxes		2,502			3,790
Other deferred income tax assets		2,796			5,020
Total deferred tax assets		38,146			58,316
Valuation allowance		(4,010	)		(3,998	)
Foreign deferred tax assets included above		(2,396	)		(1,972	)
Net deferred tax assets		31,740			52,346
Deferred tax liabilities:
Property and equipment		(10,530	)		(3,299	)
Deferred tax related to life insurance		(3,556	)		(5,642	)
Goodwill and other intangible assets		(4,299	)		(4,535	)
Other deferred income tax liabilities		(463	)		(557	)
Total deferred tax liabilities		(18,848	)		(14,033	)
Foreign deferred tax liabilities included above		7,869			2,852
United States net deferred tax assets	$	20,761		$	41,165

Schedule of Unrecognized Tax Benefits

(in thousands)	Continuing Operations			Discontinued Operations			Total
Balance at December 31, 2014	$	1,283		$	636		$	1,919
Additions for tax positions taken in prior years		43			—			43
Reductions for tax positions taken in prior years		(666	)		—			(666	)
Reductions for lapse of applicable statutes		(353	)		—			(353	)
Balance at December 31, 2015		307			636			943
Additions for tax positions taken in prior years		1,295			—			1,295
Reductions for lapse of applicable statutes		(43	)		—			(43	)
Balance at December 31, 2016		1,559			636			2,195
Additions for tax positions taken in prior years		43			—			43
Reductions for lapse of applicable statutes		(177	)		(636	)		(813	)
Balance at December 31, 2017	$	1,425		$	—		$	1,425