Taxes on Income and Uncertain Positions (Tables)

12 Months Ended

Dec. 31, 2016

Taxes on Income and Uncertain Tax Positions [Abstract]

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

			2016		2015		2014
Current:
	Federal	$	4,680	$	8,924	$	8,086
	State		518		188		796
	Foreign		12,540		11,074		13,650
			17,738		20,186		22,532
Deferred:
	Federal		4,601		404		2,548
	State		104		(16)		57
	Foreign		783		(2,789)		(1,598)
Total		$	23,226	$	17,785	$	23,539

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

		2016		2015		2014
Domestic	$	31,175	$	25,219	$	32,391
Foreign		52,834		45,011		45,902
Total	$	84,009	$	70,230	$	78,293

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

		2016		2015
Retirement benefits	$	8,236	$	9,621
Allowance for doubtful accounts		1,925		2,367
Insurance and litigation reserves		707		787
Postretirement benefits		1,623		1,863
Supplemental retirement benefits		3,670		3,220
Performance incentives		5,197		4,777
Equity-based compensation		2,088		1,823
Insurance settlement		7,755		8,100
Operating loss carryforward		7,343		7,815
Uncertain tax positions		(101)		2,785
Restructuring		217		1,897
Other		2,834		2,402
		41,494		47,457
Valuation allowance		(6,344)		(6,259)
Total deferred income tax assets, net	$	35,150	$	41,198
Depreciation		5,709		5,924
Europe pension and other		1,055		1,107
Amortization and other		16,012		14,318
Total deferred income tax liabilities	$	22,776	$	21,349

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, 2016	$	6,259	$	294	$	(187)	$	(22)	$	6,344
Year ended December 31, 2015	$	7,345	$	86	$	(802)	$	(370)	$	6,259
Year ended December 31, 2014	$	7,666	$	5	$	(105)	$	(221)	$	7,345

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

		2016		2015		2014
Income tax provision at the Federal statutory tax rate	$	29,403	$	24,578	$	27,402
Differences in tax rates on foreign earnings and remittances		(2,862)		(5,097)		(3,025)
Foreign dividends		2,939		2,690		3,278
Excess foreign tax credit utilization		(5,493)		(4,141)		(5,011)
Research and development activities credit utilization		(238)		(245)		(226)
Uncertain tax positions		(833)		226		263
Domestic production activities deduction		(875)		(910)		(567)
State income tax provisions, net		357		133		517
Non-deductible entertainment and business meals expense		238		249		278
Miscellaneous items, net		590		302		630
Taxes on income	$	23,226	$	17,785	$	23,539

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

			2016		2015		2014
Unrecognized tax benefits at January 1		$	11,032	$	11,845	$	12,596
	Decrease in unrecognized tax benefits taken in prior periods		(869)		(416)		(93)
	Increase in unrecognized tax benefits taken in current period		1,921		2,512		2,678
	Decrease in unrecognized tax benefits due to lapse of statute of limitations		(5,744)		(1,924)		(2,078)
	Decrease due to foreign exchange rates		(100)		(985)		(1,258)
Unrecognized tax benefits at December 31		$	6,240	$	11,032	$	11,845

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

	2016		2015
Non-current deferred tax assets	$	24,382	$	30,107
Non-current deferred tax liabilities		12,008		10,258
Net deferred tax asset	$	12,374	$	19,849