CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015
Operating Activities
Net income attributable to Wabtec shareholders	$ 184,648	$ 197,668
Adjustments to reconcile net income to cash provided by operations:
Depreciation and amortization	33,093	31,612
Stock-based compensation expense	9,673	14,989
Loss on disposal of property, plant and equipment	378	420
Excess income tax benefits from exercise of stock options	0	(1,388)
Changes in operating assets and liabilities, net of acquisitions
Accounts receivable and unbilled accounts receivable	(2,171)	(35,788)
Inventories	(10,893)	(25,536)
Accounts payable	(13,757)	(25,015)
Accrued income taxes	2,913	19,185
Accrued liabilities and customer deposits	3,505	(27,089)
Other assets and liabilities	6,587	(38,132)
Net cash provided by operating activities	213,976	110,926
Investing Activities
Purchase of property, plant and equipment	(19,104)	(20,860)
Proceeds from disposal of property, plant and equipment	165	178
Acquisitions of businesses, net of cash acquired	(21,263)	(100,108)
Net cash used for investing activities	(40,202)	(120,790)
Financing Activities
Proceeds from debt	230,000	174,300
Payments of debt	(175,499)	(294,589)
Purchase of treasury stock	(133,738)	0
Proceeds from exercise of stock options and other benefit plans	651	1,409
Excess income tax benefits from exercise of stock options	0	1,388
Payment of income tax withholding on share-based compensation	(9,006)	(14,565)
Cash dividends	(14,565)	(11,580)
Net cash used for financing activities	(102,157)	(143,637)
Effect of changes in currency exchange rates	5,127	(7,504)
Increase (Decrease) in cash	76,744	(161,005)
Cash, beginning of period	226,191	425,849
Cash, end of period	$ 302,935	$ 264,844