Goodwill and Other Intangible Assets (Details) - USD ($)	3 Months Ended	6 Months Ended
	Jun. 30, 2018	Jun. 30, 2018	Jun. 30, 2017	Dec. 31, 2017
Goodwill:
Goodwill, beginning of period		$ 690,223,000
Foreign currency translation		(18,297,000)
Goodwill, end of period	$ 671,926,000	671,926,000
Goodwill impairment		0
Other Intangible Assets:
Gross Amount	746,858,000	746,858,000		$ 741,058,000
Accumulated Amortization	(286,893,000)	(286,893,000)		(264,814,000)
Foreign currency translation	(17,207,000)	(17,207,000)		(11,972,000)
Other intangible assets	772,421,000	772,421,000		771,856,000
Intangible Assets, Future Amortization Expense
Amortization of intangible assets expected in 2018	43,000,000	43,000,000
Amortization of intangible assets expected in 2019	42,000,000	42,000,000
Amortization of intangible assets expected in 2020	38,000,000	38,000,000
Amortization of intangible assets expected in 2021	38,000,000	38,000,000
Amortization of intangible assets expected in 2022	38,000,000	38,000,000
Revenue sharing program payments	5,800,000	5,800,000	$ 0
Impairment of trade names, indefinite-lived intangible assets		0
Trade name [Member]
Other Intangible Assets:
Unamortized intangible asset	42,770,000	42,770,000		42,770,000
Revenue sharing programs (RSPs) [Member]
Other Intangible Assets:
Gross Amount	299,500,000	299,500,000		293,700,000
Accumulated Amortization	(115,122,000)	(115,122,000)		(108,075,000)
Component repair programs (CRPs) [Member]
Other Intangible Assets:
Gross Amount	111,839,000	111,839,000		111,839,000
Accumulated Amortization	(19,350,000)	(19,350,000)		(16,508,000)
Customer lists/relationships [Member]
Other Intangible Assets:
Gross Amount	215,966,000	215,966,000		215,966,000
Accumulated Amortization	(71,769,000)	(71,769,000)		(65,385,000)
Patents and technology [Member]
Other Intangible Assets:
Gross Amount	87,052,000	87,052,000		87,052,000
Accumulated Amortization	(53,484,000)	(53,484,000)		(48,083,000)
Trademarks/trade names [Member]
Other Intangible Assets:
Gross Amount	11,950,000	11,950,000		11,950,000
Accumulated Amortization	(10,541,000)	(10,541,000)		(10,349,000)
Other [Member]
Other Intangible Assets:
Gross Amount	20,551,000	20,551,000		20,551,000
Accumulated Amortization	(16,627,000)	(16,627,000)		$ (16,414,000)
Industrial [Member]
Goodwill:
Goodwill, beginning of period		659,437,000
Foreign currency translation		(18,297,000)
Goodwill, end of period	641,140,000	641,140,000
Aerospace [Member]
Goodwill:
Goodwill, beginning of period		30,786,000
Foreign currency translation		0
Goodwill, end of period	$ 30,786,000	$ 30,786,000
Minimum [Member] | Customer lists/relationships [Member]
Other Intangible Assets:
Range of life		10 years
Minimum [Member] | Patents and technology [Member]
Other Intangible Assets:
Range of life		4 years
Minimum [Member] | Trademarks/trade names [Member]
Other Intangible Assets:
Range of life		10 years
Maximum [Member] | Revenue sharing programs (RSPs) [Member]
Other Intangible Assets:
Range of life		30 years
Maximum [Member] | Component repair programs (CRPs) [Member]
Other Intangible Assets:
Range of life		30 years
Maximum [Member] | Customer lists/relationships [Member]
Other Intangible Assets:
Range of life		16 years
Maximum [Member] | Patents and technology [Member]
Other Intangible Assets:
Range of life		10 years
Maximum [Member] | Trademarks/trade names [Member]
Other Intangible Assets:
Range of life		30 years
Maximum [Member] | Other [Member]
Other Intangible Assets:
Range of life		15 years