Goodwill and Other Intangible Assets (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Dec. 31, 2017
Goodwill:
Goodwill, beginning of period	$ 690,223
Foreign currency translation	15,071
Goodwill, end of period	705,294
Other Intangible Assets:
Gross Amount	741,058	$ 741,058
Accumulated Amortization	(275,928)	(264,814)
Foreign currency translation	(6,091)	(11,972)
Other intangible assets	777,737	771,856
Intangible Assets, Future Amortization Expense
Amortization of intangible assets expected in 2018	41,000
Amortization of intangible assets expected in 2019	41,000
Amortization of intangible assets expected in 2020	37,000
Amortization of intangible assets expected in 2021	37,000
Amortization of intangible assets expected in 2022	37,000
Trade name [Member]
Other Intangible Assets:
Unamortized intangible asset	42,770	42,770
Revenue sharing programs (RSPs) [Member]
Other Intangible Assets:
Gross Amount	293,700	293,700
Accumulated Amortization	(111,717)	(108,075)
Component repair programs (CRPs) [Member]
Other Intangible Assets:
Gross Amount	111,839	111,839
Accumulated Amortization	(17,783)	(16,508)
Customer lists/relationships [Member]
Other Intangible Assets:
Gross Amount	215,966	215,966
Accumulated Amortization	(68,625)	(65,385)
Patents and technology [Member]
Other Intangible Assets:
Gross Amount	87,052	87,052
Accumulated Amortization	(50,838)	(48,083)
Trademarks/trade names [Member]
Other Intangible Assets:
Gross Amount	11,950	11,950
Accumulated Amortization	(10,446)	(10,349)
Other [Member]
Other Intangible Assets:
Gross Amount	20,551	20,551
Accumulated Amortization	(16,519)	$ (16,414)
Industrial [Member]
Goodwill:
Goodwill, beginning of period	659,437
Foreign currency translation	15,071
Goodwill, end of period	674,508
Aerospace [Member]
Goodwill:
Goodwill, beginning of period	30,786
Foreign currency translation	0
Goodwill, end of period	$ 30,786
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