BUSINESS SEGMENT INFORMATION We are a global provider of engineered services and products, primarily to the offshore energy industry. Through the use of our applied technology expertise, we also serve the defense, aerospace and commercial theme park industries. Our Energy Services and Products business consists of ROVs, Subsea Products, Subsea Projects and Asset Integrity. Our ROV segment provides submersible vehicles operated from the surface to support offshore energy exploration, development and production activities. Our Subsea Products segment supplies a variety of specialty subsea hardware and related services. Our Subsea Projects segment provides multiservice subsea support shallow and deepwater vessels and offshore diving and support vessel operations, primarily for inspection, maintenance and repair and installation activities. We also provide survey, autonomous underwater vehicle and satellite-positioning services. For the renewable energy markets, we provide seabed preparation, route clearance and trenching services for submarine cables. Our Asset Integrity segment provides asset integrity management and assessment services, nondestructive testing and inspection. Our Advanced Technologies business provides project management, engineering services and equipment for applications in non-energy industries. Unallocated Expenses are those not associated with a specific business segment. These consist of expenses related to our incentive and deferred compensation plans, including restricted stock and bonuses, as well as other general expenses, including corporate administrative expenses. There are no differences in the basis of segmentation or in the basis of measurement of segment profit or loss from those used in our consolidated financial statements for the year ended December 31, 2019 . The following table presents revenue, income (loss) from operations and depreciation and amortization expense by business segment for each of the periods indicated. Three Months Ended Six Months Ended (in thousands) Jun 30, 2020 Jun 30, 2019 Mar 31, 2020 Jun 30, 2020 Jun 30, 2019 Revenue Energy Services and Products Remotely Operated Vehicles $ 98,778 $ 120,363 $ 111,780 $ 210,558 $ 220,709 Subsea Products 130,655 138,910 194,838 325,493 267,754 Subsea Projects 56,326 75,104 61,455 117,781 164,832 Asset Integrity 48,077 61,156 59,132 107,209 121,845 Total Energy Services and Products 333,836 395,533 427,205 761,041 775,140 Advanced Technologies 93,380 100,248 109,463 202,843 214,527 Total $ 427,216 $ 495,781 $ 536,668 $ 963,884 $ 989,667 Income (Loss) from Operations Energy Services and Products Remotely Operated Vehicles $ 5,975 $ 8,688 $ 9,066 $ 15,041 $ 10,106 Subsea Products 9,068 7,413 (91,858 ) (82,790 ) 6,937 Subsea Projects 845 87 (145,290 ) (144,445 ) 2,979 Asset Integrity (2,598 ) (1,302 ) (109,441 ) (112,039 ) (2,015 ) Total Energy Services and Products 13,290 14,886 (337,523 ) (324,233 ) 18,007 Advanced Technologies 9,707 7,241 (10,585 ) (878 ) 16,840 Unallocated Expenses (28,179 ) (31,762 ) (32,649 ) (60,828 ) (66,196 ) Total $ (5,182 ) $ (9,635 ) $ (380,757 ) $ (385,939 ) $ (31,349 ) Depreciation and Amortization, including Goodwill Impairment Energy Services and Products Remotely Operated Vehicles $ 22,892 $ 26,871 $ 25,725 $ 48,617 $ 54,861 Subsea Products 10,024 12,366 62,454 72,478 25,357 Subsea Projects 4,597 7,550 143,346 147,943 15,432 Asset Integrity 190 1,570 111,385 111,575 3,204 Total Energy Services and Products 37,703 48,357 342,910 380,613 98,854 Advanced Technologies 634 765 12,178 12,812 1,595 Unallocated Expenses 361 1,182 1,108 1,469 2,341 Total $ 38,698 $ 50,304 $ 356,196 $ 394,894 $ 102,790 We determine Income (Loss) from Operations for each business segment before interest income or expense, other income (expense) and provision for income taxes. We do not consider an allocation of these items to be practical. Income (Loss) from Operations Three Months Ended March 31, 2020 and Six Months Ended June 30, 2020 During the three-month period ended March 31, 2020 and the six-month period ended June 30, 2020 , we recorded total adjustments of $386 million for:  loss on impairment of $69 million in our Subsea Products, Subsea Projects and Advanced Technologies segments for long-lived assets;  write-downs and write-offs of certain intangible assets as discussed below in " Depreciation and Amortization Expense " of $7.3 million ;  pre-tax goodwill impairment of $303 million in our Subsea Products, Subsea Projects, Asset Integrity and Advanced Technologies segments; and  other expenses of $6.6 million . These total adjustments of $386 million , attributable to each of our reporting segments, are summarized as follows:  Remotely Operated Vehicles - $0.7 million ;  Subsea Products - $108 million ;  Subsea Projects - $146 million ;  Asset Integrity - $112 million ; and  Advanced Technologies - $18 million . Depreciation and Amortization, including Goodwill Impairment Depreciation expense on property and equipment, reflected in Depreciation and Amortization, including Goodwill Impairment in the table above, was $38 million , $49 million and $43 million in the three-month periods ended June 30, 2020 and 2019 and March 31, 2020 , respectively, and $81 million and $97 million in the six-month periods ended June 30, 2020 and 2019 , respectively. Amortization expense on long-lived intangible assets, reflected in Depreciation and Amortization, including Goodwill Impairment in the table above, was $0.8 million , $1.8 million and $2.6 million in the three-month periods ended June 30, 2020 and 2019 and March 31, 2020 , respectively, and $3.4 million and $5.6 million in the six-month periods ended June 30, 2020 and 2019 , respectively. Goodwill impairment expense, reflected in Depreciation and Amortization, including Goodwill Impairment in the table above, was $303 million , in the three-month period ended March 31, 2020 and the six-month period ended June 30, 2020 , attributable to each reporting segment as follows:  Subsea Products - $51 million ;  Subsea Projects - $130 million ; and  Asset Integrity - $111 million ; and  Advanced Technologies - $11 million . In the three-month period ended March 31, 2020 and the six-month period ended June 30, 2020 , we also recorded the write-downs and write-offs of certain intangible assets of $7.3 million in our Subsea Projects segment, which is included in Depreciation and Amortization, including Goodwill Impairment in the table above. Goodwill The following table presents Goodwill by business segment: (in thousands) Jun 30, 2020 Dec 31, 2019 Goodwill Energy Services and Products Remotely Operated Vehicles $ 23,935 $ 24,423 Subsea Products 40,557 99,409 Subsea Projects  131,768 Asset Integrity  127,637 Total Energy Services and Products 64,492 383,237 Advanced Technologies 10,454 21,842 Total $ 74,946 $ 405,079