Taxes on Income and Uncertain Positions (Tables)

12 Months Ended

Dec. 31, 2017

Taxes on Income and Uncertain Tax Positions [Abstract]

Schedule of Components of Income Tax Expense (Benefit) [Table Text Block]

			2017		2016		2015
Current:
	Federal	$	21,265	$	4,680	$	8,924
	State		2,529		518		188
	Foreign		14,105		12,540		11,074
			37,899		17,738		20,186
Deferred:
	Federal		6,889		4,601		404
	State		(36)		104		(16)
	Foreign		(3,099)		783		(2,789)
Total		$	41,653	$	23,226	$	17,785

Schedule of Income before Income Tax, Domestic and Foreign [Table Text Block]

		2017		2016		2015
Domestic	$	10,468	$	31,175	$	25,219
Foreign		50,200		52,834		45,011
Total	$	60,668	$	84,009	$	70,230

Schedule of Deferred Tax Assets and Liabilities [Table Text Block]

		2017		2016
Retirement benefits	$	5,472	$	8,236
Allowance for doubtful accounts		1,134		1,925
Insurance and litigation reserves		497		707
Postretirement benefits		1,056		1,623
Supplemental retirement benefits		2,679		3,670
Performance incentives		3,779		5,197
Equity-based compensation		1,071		2,088
Insurance settlement		4,581		7,755
Operating loss carryforward		8,602		7,343
Foreign tax credit and other credits		3,043		—
Uncertain tax positions		(410)		(101)
Restructuring		—		217
Other		2,816		2,834
		34,320		41,494
Valuation allowance		(7,401)		(6,344)
Total deferred tax assets, net	$	26,919	$	35,150
Depreciation		4,444		5,709
Europe pension and other		1,295		1,055
Amortization and other		15,373		16,012
Total deferred tax liabilities	$	21,112	$	22,776

Schedule of Deferred Income Tax Assets Valuation Allowance [Table Text Block]

								Effect of
		Balance at		Additional		Allowance		Exchange		Balance
		Beginning		Valuation		Utilization		Rate		at End
		of Period		Allowance		and Other		Changes		of Period
Valuation Allowance
Year ended December 31, 2017	$	6,344	$	1,127	$	(61)	$	(9)	$	7,401
Year ended December 31, 2016	$	6,259	$	294	$	(187)	$	(22)	$	6,344
Year ended December 31, 2015	$	7,345	$	86	$	(802)	$	(370)	$	6,259

Schedule of Effective Income Tax Rate Reconciliation [Table Text Block]

		2017		2016		2015
Income tax provision at the Federal statutory tax rate	$	21,229	$	29,403	$	24,578
Transition Tax		18,388		—		—
Revaluation of U.S. deferred tax assets and liabilities		4,470		—		—
Non-deductible acquisition expenses		4,779		696		122
Share-based compensation		(1,419)		—		—
Differences in tax rates on foreign earnings and remittances		(2,663)		(2,862)		(5,097)
Foreign dividends		—		2,939		2,690
Excess foreign tax credit utilization		(2,761)		(5,493)		(4,141)
Research and development activities credit utilization		(235)		(238)		(245)
Uncertain tax positions		(651)		(833)		226
Domestic production activities deduction		(1,155)		(875)		(910)
State income tax provisions, net		569		357		133
Non-deductible entertainment and business meals expense		248		238		249
Miscellaneous items, net		854		(106)		180
Taxes on income	$	41,653	$	23,226	$	17,785

Schedule of Unrecognized Tax Benefits Roll Forward [Table Text Block]

			2017		2016		2015
Unrecognized tax benefits as of January 1		$	6,240	$	11,032	$	11,845
	Decrease in unrecognized tax benefits taken in prior periods		(308)		(869)		(416)
	Increase in unrecognized tax benefits taken in current period		2,347		1,921		2,512
	Decrease in unrecognized tax benefits due to lapse of statute of limitations		(2,116)		(5,744)		(1,924)
	Increase (decrease) due to foreign exchange rates		598		(100)		(985)
Unrecognized tax benefits as of December 31		$	6,761	$	6,240	$	11,032

Schedule Of Deferred Tax Assets And Liabilities Balance Sheet Classification [Table Text Block]

	2017		2016
Non-current deferred tax assets	$	15,460	$	24,382
Non-current deferred tax liabilities		9,653		12,008
Net deferred tax asset	$	5,807	$	12,374