Income Taxes (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Income Tax Contingency [Line Items]
Tax Adjustments, Settlements, and Unusual Provisions	$ 115,300
Current:
U.S. federal	59,292	$ 20,569	$ 62,032
Non-U.S.	22,442	75,227	78,489
State and local	5,537	2,612	4,947
Total current	87,271	98,408	145,468
Deferred:
U.S. federal	135,294	22,249	(3,509)
Non-U.S.	34,626	(45,577)	4,972
State and local	1,488	2,300	1,420
Total deferred	171,408	(21,028)	2,883
Total provision	258,679	77,380	148,351
Effective Income Tax Rate Reconciliation, Amount [Abstract]
Statutory federal income tax at 35%	92,100	74,500	144,300
Foreign impact, net	(36,400)	(13,900)	(22,100)
Impact of U.S. Tax Cuts and Jobs Act of 2017	115,300	0	0
Change in valuation allowance	73,600	14,200	11,600
State and local income taxes, net	4,900	4,900	6,400
Other, net	$ 9,200	$ (2,300)	$ 8,200
Effective tax rate	98.40%	36.30%	36.00%
Statutory federal income tax rate	21.00%	35.00%	35.00%
Deferred tax assets related to:
Retirement benefits	$ 28,519	$ 39,644
Net operating loss carryforwards	73,465	48,180
Compensation accruals	24,030	30,299
Inventories	30,870	43,445
Credit carryforwards	8,910	64,251
Warranty and accrued liabilities	16,005	30,612
Bad debt reserve	30,698	27,857
Other	40,859	40,806
Total deferred tax assets	253,356	325,094
Valuation allowances	(119,309)	(36,191)
Net deferred tax assets	134,047	288,903
Deferred tax liabilities related to:
Property, plant and equipment	(24,204)	(47,616)
Goodwill and intangibles	(123,036)	(176,935)
Non-U.S. undistributed earnings taxes	(75,442)	0
Other	(15,667)	(716)
Total deferred tax liabilities	238,349	225,267
Deferred tax (liabilities) assets, net	(104,302)
Deferred tax (liabilities) assets, net		63,636
Net operating loss carryforwards	323,900
Earnings before income taxes comprised:
U.S.	102,372	170,681	$ 215,719
Non-U.S.	160,635	42,231	196,647
Total	263,007	212,912	412,366
Reconciliation of the total gross amount of unrecognized tax benefits, excluding interest and penalities:
Balance —	59,300	56,100	51,500
Gross amount of (decrease) increase in unrecognized tax benefits resulting from tax positions taken:
During a prior year	(3,500)
During a prior year		1,900	9,800
During the current period	5,500	14,300	8,600
Decreases in unrecognized tax benefits relating to:
Settlements with taxing authorities	(10,800)	(4,000)	(1,100)
Lapse of the applicable statute of limitations	(3,100)	(7,300)	(7,400)
Increase (decrease) in unrecognized tax benefits relating to foreign currency translation adjustments	4,100
Increase (decrease) in unrecognized tax benefits relating to foreign currency translation adjustments		(1,700)	(5,300)
Balance —	51,500	$ 59,300	$ 56,100
Gross unrecognized tax benefits	66,100
Gross unrecognized tax benefits, accrued interest and penalties	14,600
Unrecognized tax benefits, if recognized, would favorably impact effective tax rate	65,500
Unrecognized tax benefits minimum amount of estimated reduction within the next twelve months	8,000
Effective Income Tax Rate Reconciliation, Repatriation of Foreign Earnings, Amount	$ 120,500
Significant Change in Unrecognized Tax Benefits, Nature of Event	5.2
Valuation Allowance, Deferred Tax Asset, Increase (Decrease), Amount	$ 12,600
State
Deferred tax liabilities related to:
Net operating loss carryforwards	32,400
Foreign Tax Authority
Deferred tax liabilities related to:
Tax credit carryforwards	7,500
Tax Credit Carryforward, Valuation Allowance	$ 7,500