Revenue Revenue by type (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Including Assessed Tax	$ 764,806	$ 928,262	$ 1,644,844	$ 1,895,653
Sealing systems [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Including Assessed Tax	384,317	475,472	799,711	970,534
Fuel and brake delivery systems [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Including Assessed Tax	187,354	206,176	384,881	412,628
Fluid transfer systems [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Including Assessed Tax	149,938	135,676	301,619	285,097
Anti-vibration systems [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Including Assessed Tax	169	87,552	78,728	178,831
Other products [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Including Assessed Tax	43,028	23,386	79,905	48,563
North America [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Including Assessed Tax	404,863	477,608	879,570	976,786
North America [Member] | Sealing systems [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Including Assessed Tax	143,010	165,872	299,526	338,683
North America [Member] | Fuel and brake delivery systems [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Including Assessed Tax	123,978	139,308	255,681	278,109
North America [Member] | Fluid transfer systems [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Including Assessed Tax	114,381	107,495	227,829	227,168
North America [Member] | Anti-vibration systems [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Including Assessed Tax	0	64,751	56,457	132,272
North America [Member] | Other products [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Including Assessed Tax	23,494	182	40,077	554
Europe [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Including Assessed Tax	216,217	279,124	470,816	571,525
Europe [Member] | Sealing systems [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Including Assessed Tax	143,988	175,637	299,548	360,089
Europe [Member] | Fuel and brake delivery systems [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Including Assessed Tax	31,023	36,661	66,321	75,614
Europe [Member] | Fluid transfer systems [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Including Assessed Tax	21,514	23,055	44,312	46,064
Europe [Member] | Anti-vibration systems [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Including Assessed Tax	158	20,567	20,807	41,749
Europe [Member] | Other products [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Including Assessed Tax	19,534	23,204	39,828	48,009
Asia Pacific [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Including Assessed Tax	118,603	147,994	246,098	297,169
Asia Pacific [Member] | Sealing systems [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Including Assessed Tax	78,303	116,484	163,793	234,374
Asia Pacific [Member] | Fuel and brake delivery systems [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Including Assessed Tax	26,309	24,234	51,500	46,329
Asia Pacific [Member] | Fluid transfer systems [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Including Assessed Tax	13,980	5,042	29,341	11,656
Asia Pacific [Member] | Anti-vibration systems [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Including Assessed Tax	11	2,234	1,464	4,810
Asia Pacific [Member] | Other products [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Including Assessed Tax	0	0	0	0
South America [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Including Assessed Tax	25,123	23,536	48,360	50,173
South America [Member] | Sealing systems [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Including Assessed Tax	19,016	17,479	36,844	37,388
South America [Member] | Fuel and brake delivery systems [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Including Assessed Tax	6,044	5,973	11,379	12,576
South America [Member] | Fluid transfer systems [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Including Assessed Tax	63	84	137	209
South America [Member] | Anti-vibration systems [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Including Assessed Tax	0	0	0	0
South America [Member] | Other products [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Including Assessed Tax	$ 0	$ 0	$ 0	$ 0