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Acquisitions - Pro Forma Financial Information (Detail) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Business Combinations [Abstract]
Net sales	$ 2,236,284	$ 2,023,848	$ 4,316,055	$ 3,905,572
Gross profit	703,676	634,868	1,247,156	1,019,549
Net income attributable to Wabtec shareholders	$ 171,875	$ 151,475	$ 255,152	$ 99,206
Diluted earnings per share
As Reported (in dollars per share)	$ 0.54	$ 0.87	$ 0.61	$ 1.79
Pro forma (in dollars per share)	$ 0.90	$ 0.79	$ 1.34	$ 0.52

X

- Definition

The pro forma diluted net income per share for a period as if the business combination or combinations had been completed at the beginning of a period.

+ References

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