XML 224 R193.htm IDEA: XBRL DOCUMENT
v3.10.0.1

Segment Information - Segment Financial Information (Q3) (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended | 12 Months Ended
--- | --- | --- | ---
Sep. 30, 2018 | Dec. 31, 2017 | Sep. 30, 2017 | Jun. 30, 2017 | Mar. 31, 2017 | Dec. 31, 2016 | Sep. 30, 2016 | Jun. 30, 2016 | Mar. 31, 2016 | Sep. 30, 2018 | Sep. 30, 2017 | Dec. 31, 2017 | Dec. 31, 2016 | Dec. 31, 2015
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Total sales | $ 1,077,814 |  | $ 957,931 |  |  |  |  |  |  | $ 3,245,671 | $ 2,806,218 |  |  |
Income (loss) from operations | 125,179 | $ 91,545 | 101,666 | $ 113,356 | $ 114,512 | $ 62,623 | $ 119,400 | $ 132,375 | $ 142,209 | 379,981 | 329,535 | $ 421,079 | $ 456,607 | $ 608,854
Interest expense and other, net | (22,512) |  | (20,481) |  |  |  |  |  |  | (69,959) | (52,156) | (69,016) | (43,770) | (23,486)
Income from operations before income taxes | 102,667 |  | 81,185 |  |  |  |  |  |  | 310,022 | 277,379 | 352,063 | 412,837 | 585,368
Freight Segment |  |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Total sales | 391,577 |  | 340,185 |  |  |  |  |  |  | 1,183,389 | 1,032,959 |  |  |
Income from operations before income taxes | 79,420 |  | 61,424 |  |  |  |  |  |  | 233,390 | 195,811 |  |  |
Transit Segment |  |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Total sales | 686,237 |  | 617,746 |  |  |  |  |  |  | 2,062,282 | 1,773,259 |  |  |
Income from operations before income taxes | 60,735 |  | 47,358 |  |  |  |  |  |  | 186,794 | 155,383 |  |  |
Operating Segments | Freight Segment |  |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Total sales | 405,087 |  | 348,561 |  |  |  |  |  |  | 1,227,600 | 1,060,561 |  |  |
Income (loss) from operations | 79,420 |  | 61,424 |  |  |  |  |  |  | 233,390 | 195,811 | 264,276 | 343,578 | 483,284
Interest expense and other, net | 0 |  | 0 |  |  |  |  |  |  | 0 | 0 | 0 | 0 | 0
Income from operations before income taxes |  |  |  |  |  |  |  |  |  |  |  | 264,276 | 343,578 | 483,284
Operating Segments | Transit Segment |  |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Total sales | 690,975 |  | 622,240 |  |  |  |  |  |  | 2,073,893 | 1,789,512 |  |  |
Income (loss) from operations | 60,735 |  | 47,358 |  |  |  |  |  |  | 186,794 | 155,383 | 188,219 | 170,569 | 151,631
Interest expense and other, net | 0 |  | 0 |  |  |  |  |  |  | 0 | 0 | 0 | 0 | 0
Income from operations before income taxes |  |  |  |  |  |  |  |  |  |  |  | 188,219 | 170,569 | 151,631
Intersegment sales/(elimination) |  |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Total sales | (18,248) |  | (12,870) |  |  |  |  |  |  | (55,822) | (43,855) |  |  |
Intersegment sales/(elimination) | Freight Segment |  |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Total sales | 13,510 |  | 8,376 |  |  |  |  |  |  | 44,211 | 27,602 |  |  |
Intersegment sales/(elimination) | Transit Segment |  |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Total sales | 4,738 |  | 4,494 |  |  |  |  |  |  | 11,611 | 16,253 |  |  |
Corporate Activities and Elimination |  |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Total sales | (18,248) |  | (12,870) |  |  |  |  |  |  | (55,822) | (43,855) |  |  |
Income (loss) from operations | (14,976) |  | (7,116) |  |  |  |  |  |  | (40,203) | (21,659) | (31,416) | (57,540) | (26,061)
Interest expense and other, net | (22,512) |  | (20,481) |  |  |  |  |  |  | (69,959) | (52,156) | (69,016) | (43,770) | (23,486)
Income from operations before income taxes | $ (37,488) |  | $ (27,597) |  |  |  |  |  |  | $ (110,162) | $ (73,815) | $ (100,432) | $ (101,310) | $ (49,547)

X
- Definition Amount of income (loss) from continuing operations, including income (loss) from equity method investments, before deduction of income tax expense (benefit), and income (loss) attributable to noncontrolling interest. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 940 -SubTopic 20 -Section 25 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=68072869&loc=d3e41242-110953 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03(10)) -URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 225 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-04(15)) -URI http://asc.fasb.org/extlink&oid=6879574&loc=d3e536633-122882 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 225 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-04(8)) -URI http://asc.fasb.org/extlink&oid=6879464&loc=d3e573970-122913 + Details
Name: | us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The net result for the period of deducting operating expenses from operating revenues. + References No definition available. + Details
Name: | us-gaap_OperatingIncomeLoss
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 32 -Paragraph 2A -URI http://asc.fasb.org/extlink&oid=82859839&loc=SL82860478-203043 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 4 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=82913847&loc=SL49130543-203045 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=82913847&loc=SL49130539-203045 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=82913847&loc=SL49130545-203045 + Details
Name: | us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_SegmentReportingInformationLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of interest expense and other revenue and expenses that are associated with the entity's normal revenue producing operation. + References No definition available. + Details
Name: | wab_InterestExpenseAndOtherNet
Namespace Prefix: | wab_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=wab_FreightSegmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=wab_TransitSegmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ConsolidationItemsAxis=us-gaap_OperatingSegmentsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ConsolidationItemsAxis=us-gaap_IntersegmentEliminationMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ConsolidationItemsAxis=us-gaap_CorporateNonSegmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |