CONDENSED CONSOLIDATED BALANCE SHEETS (USD $) In Thousands, unless otherwise specified	Mar. 31, 2013	Dec. 31, 2012
Current Assets
Cash and cash equivalents	$ 225,338	$ 215,766
Accounts receivable	432,797	389,915
Inventories	428,584	407,039
Deferred income taxes	60,907	60,894
Other	21,360	19,324
Total current assets	1,168,986	1,092,938
Property, plant and equipment	563,500	555,924
Accumulated depreciation	(320,784)	(311,836)
Property, plant and equipment, net	242,716	244,088
Other Assets
Goodwill	728,021	666,022
Other intangibles, net	325,297	308,321
Other noncurrent assets	41,155	40,173
Total other assets	1,094,473	1,014,516
Total Assets	2,506,175	2,351,542
Current Liabilities
Accounts payable	267,445	248,593
Customer deposits	84,450	82,810
Accrued compensation	45,094	53,222
Accrued warranty	41,422	39,860
Current portion of long-term debt	43	43
Other accrued liabilities	122,527	128,531
Total current liabilities	560,981	553,059
Long-term debt	417,527	317,853
Accrued postretirement and pension benefits	63,650	66,388
Deferred income taxes	89,561	91,176
Accrued warranty	17,875	18,352
Other long-term liabilities	25,313	22,697
Total liabilities	1,174,907	1,069,525
Shareholders’ Equity
Preferred stock, 1,000,000 shares authorized, no shares issued
Common stock, $.01 par value; 100,000,000 shares authorized: 66,174,767 shares issued and 48,093,949 and 47,703,684 outstanding at March 31, 2013 and December 31, 2012, respectively	662	662
Additional paid-in capital	382,029	381,348
Treasury stock, at cost, 18,080,818 and 18,471,083 shares, at March 31, 2013 and December 31, 2012, respectively	(342,005)	(349,388)
Retained earnings	1,364,999	1,297,772
Accumulated other comprehensive loss	(79,304)	(53,564)
Total Westinghouse Air Brake Technologies Corporation shareholders’ equity	1,326,381	1,276,830
Non-controlling interest	4,887	5,187
Total shareholders’ equity	1,331,268	1,282,017
Total Liabilities and Shareholders’ Equity	$ 2,506,175	$ 2,351,542