CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015
Operating Activities
Net income attributable to Wabtec shareholders	$ 267,076	$ 296,849
Adjustments to reconcile net income to cash provided by operations:
Depreciation and amortization	49,375	48,167
Stock-based compensation expense	14,788	20,092
Loss on disposal of property, plant and equipment	151	1,804
Excess income tax benefits from exercise of stock options	(446)	(2,683)
Changes in operating assets and liabilities, net of acquisitions
Accounts receivable and unbilled accounts receivable	(38,362)	(881)
Inventories	2,301	(15,847)
Accounts payable	(43,777)	(80,701)
Accrued income taxes	5,952	20,964
Accrued liabilities and customer deposits	(8,353)	(12,911)
Other assets and liabilities	(1,812)	(19,547)
Net cash provided by operating activities	246,893	255,306
Investing Activities
Purchase of property, plant and equipment	(31,676)	(33,079)
Proceeds from disposal of property, plant and equipment	140	354
Acquisitions of businesses, net of cash acquired	(84,355)	(100,108)
Deposit in escrow	0	(209,128)
Net cash used for investing activities	(115,891)	(341,961)
Financing Activities
Proceeds from debt	346,000	390,300
Payments of debt	(215,850)	(460,308)
Purchase of treasury stock	(212,176)	(22,336)
Proceeds from exercise of stock options and other benefit plans	1,773	2,708
Excess income tax benefits from exercise of equity options	446	2,683
Payment of income tax withholding on share-based compensation	(9,006)	(14,565)
Cash dividends ($0.26 and $0.20 per share for the nine months ended September 30, 2016 and 2015, respectively)	(23,523)	(19,315)
Net cash used for financing activities	(112,336)	(120,833)
Effect of changes in currency exchange rates	5,525	(10,120)
Increase (Decrease) in cash	24,191	(217,608)
Cash, beginning of period	226,191	425,849
Cash, end of period	$ 250,382	$ 208,241