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v3.20.4

Segment Information - Schedule of Segment Reporting Information by Segment (Detail) - USD ($) $ in Millions | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2020 | Sep. 30, 2020 | Jun. 30, 2020 | Mar. 31, 2020 | Dec. 31, 2019 | Sep. 30, 2019 | Jun. 30, 2019 | Mar. 31, 2019 | Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Revenues before reimbursements |  |  |  |  |  |  |  |  | $ 6,851.9 | $ 7,056.4 | $ 6,792.4
Reimbursements |  |  |  |  |  |  |  |  | 151.7 | 138.6 | 141.6
Total revenues | $ 1,703.6 | $ 1,849.1 | $ 1,584.0 | $ 1,866.9 | $ 1,721.4 | $ 1,825.2 | $ 1,657.8 | $ 1,990.6 | 7,003.6 | 7,195.0 | 6,934.0
Compensation |  |  |  |  |  |  |  |  | 3,466.5 | 3,339.5 | 3,026.3
Operating |  |  |  |  |  |  |  |  | 906.5 | 1,068.5 | 903.7
Reimbursements |  |  |  |  |  |  |  |  | 151.7 | 138.6 | 141.6
Cost of revenues from clean coal activities |  |  |  |  |  |  |  |  | 882.1 | 1,352.8 | 1,816.0
Interest |  |  |  |  |  |  |  |  | 196.4 | 179.8 | 138.4
Depreciation |  |  |  |  |  |  |  |  | 145.1 | 140.4 | 127.8
Amortization |  |  |  |  |  |  |  |  | 417.3 | 334.0 | 291.2
Change in estimated acquisition earnout payables |  |  |  |  |  |  |  |  | (32.9) | 15.3 | 9.6
Total expenses | 1,569.9 | 1,639.6 | 1,412.3 | 1,510.9 | 1,637.4 | 1,710.4 | 1,552.3 | 1,668.8 | 6,132.7 | 6,568.9 | 6,454.6
Earnings (loss) before income taxes | 133.7 | 209.5 | 171.7 | 356.0 | 84.0 | 114.8 | 105.5 | 321.8 | 870.9 | 626.1 | 479.4
Provision (benefit) for income taxes |  |  |  |  |  |  |  |  | 12.8 | (89.7) | (196.5)
Net earnings (loss) |  |  |  |  |  |  |  |  | 858.1 | 715.8 | 675.9
Net earnings attributable to noncontrolling interests |  |  |  |  |  |  |  |  | 39.3 | 47.0 | 42.4
Net earnings (loss) attributable to controlling interests | 142.2 | $ 176.6 | $ 153.7 | $ 346.3 | 98.5 | $ 126.1 | $ 110.1 | $ 334.1 | 818.8 | 668.8 | 633.5
Net foreign exchange (loss) gain |  |  |  |  |  |  |  |  | (2.9) | (6.7) | 2.9
Total identifiable assets | 22,331.4 |  |  |  | 19,634.8 |  |  |  | 22,331.4 | 19,634.8 | 16,334.0
Goodwill - net | 6,127.0 |  |  |  | 5,618.5 |  |  |  | 6,127.0 | 5,618.5 | 4,625.6
Amortizable intangible assets - net | 2,399.9 |  |  |  | 2,318.7 |  |  |  | 2,399.9 | 2,318.7 | 1,773.0
Unites States [Member] |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total revenues |  |  |  |  |  |  |  |  | 5,048.9 | 5,379.1 | 5,377.8
Total identifiable assets | 11,786.3 |  |  |  | 10,782.7 |  |  |  | 11,786.3 | 10,782.7 | 9,237.6
Goodwill - net | 3,433.0 |  |  |  | 3,196.9 |  |  |  | 3,433.0 | 3,196.9 |
United Kingdom [Member] |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total revenues |  |  |  |  |  |  |  |  | 1,034.4 | 963.4 | 773.9
Total identifiable assets | 6,274.3 |  |  |  | 5,091.1 |  |  |  | 6,274.3 | 5,091.1 | 3,862.3
Goodwill - net | 1,343.4 |  |  |  | 1,190.7 |  |  |  | 1,343.4 | 1,190.7 |
Australia [Member] |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total revenues |  |  |  |  |  |  |  |  | 314.5 | 298.6 | 290.6
Total identifiable assets | 1,462.9 |  |  |  | 1,307.9 |  |  |  | 1,462.9 | 1,307.9 | 1,143.3
Goodwill - net | 473.6 |  |  |  | 427.0 |  |  |  | 473.6 | 427.0 |
Canada [Member] |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total revenues |  |  |  |  |  |  |  |  | 249.1 | 226.0 | 185.4
Total identifiable assets | 1,058.4 |  |  |  | 916.7 |  |  |  | 1,058.4 | 916.7 | 787.5
Goodwill - net | 492.9 |  |  |  | 454.4 |  |  |  | 492.9 | 454.4 |
New Zealand [Member] |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total revenues |  |  |  |  |  |  |  |  | 154.4 | 160.8 | 157.5
Total identifiable assets | 790.1 |  |  |  | 718.7 |  |  |  | 790.1 | 718.7 | 709.8
Goodwill - net | 232.6 |  |  |  | 218.1 |  |  |  | 232.6 | 218.1 |
Other Foreign [Member] |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total revenues |  |  |  |  |  |  |  |  | 202.3 | 167.1 | 148.8
Total identifiable assets | 959.4 |  |  |  | 817.7 |  |  |  | 959.4 | 817.7 | 593.5
Goodwill - net | 151.5 |  |  |  | 131.4 |  |  |  | 151.5 | 131.4 |
Commissions [Member] |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Revenues before reimbursements |  |  |  |  |  |  |  |  | 3,591.9 | 3,320.6 | 2,920.7
Broker Fees [Member] |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Revenues before reimbursements |  |  |  |  |  |  |  |  | 1,957.9 | 1,911.1 | 1,756.3
Supplemental Revenue [Member] |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Revenues before reimbursements |  |  |  |  |  |  |  |  | 221.9 | 210.5 | 189.9
Contingent Revenue [Member] |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Revenues before reimbursements |  |  |  |  |  |  |  |  | 147.0 | 135.6 | 98.0
Investment income [Member] |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Revenues before reimbursements |  |  |  |  |  |  |  |  | 75.9 | 86.9 | 70.1
Net (Losses) Gains on Divestitures [Member] |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Revenues before reimbursements |  |  |  |  |  |  |  |  | (5.8) | 75.3 | 10.2
Clean Coal Activities [Member] |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Revenues before reimbursements |  |  |  |  |  |  |  |  | 863.5 | 1,319.3 | 1,746.3
Other Net (Losses) Gains [Member] |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Revenues before reimbursements |  |  |  |  |  |  |  |  | (0.4) | (2.9) | 0.9
Brokerage [Member] |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Goodwill - net | 6,053.6 |  |  |  | 5,548.9 |  |  |  | 6,053.6 | 5,548.9 | 4,573.6
Brokerage [Member] | Unites States [Member] |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Goodwill - net | 3,399.8 |  |  |  | 3,163.8 |  |  |  | 3,399.8 | 3,163.8 |
Brokerage [Member] | United Kingdom [Member] |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Goodwill - net | 1,328.3 |  |  |  | 1,177.8 |  |  |  | 1,328.3 | 1,177.8 |
Brokerage [Member] | Australia [Member] |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Goodwill - net | 462.1 |  |  |  | 416.5 |  |  |  | 462.1 | 416.5 |
Brokerage [Member] | Canada [Member] |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Goodwill - net | 492.9 |  |  |  | 454.4 |  |  |  | 492.9 | 454.4 |
Brokerage [Member] | New Zealand [Member] |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Goodwill - net | 221.9 |  |  |  | 208.0 |  |  |  | 221.9 | 208.0 |
Brokerage [Member] | Other Foreign [Member] |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Goodwill - net | 148.6 |  |  |  | 128.4 |  |  |  | 148.6 | 128.4 |
Brokerage [Member] | Operating Segments [Member] |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Revenues before reimbursements |  |  |  |  |  |  |  |  | 5,167.1 | 4,901.5 | 4,246.9
Total revenues |  |  |  |  |  |  |  |  | 5,167.1 | 4,901.5 | 4,246.9
Compensation |  |  |  |  |  |  |  |  | 2,882.5 | 2,745.9 | 2,447.1
Operating |  |  |  |  |  |  |  |  | 687.2 | 796.5 | 673.5
Depreciation |  |  |  |  |  |  |  |  | 73.5 | 66.6 | 60.9
Amortization |  |  |  |  |  |  |  |  | 411.3 | 329.1 | 286.9
Change in estimated acquisition earnout payables |  |  |  |  |  |  |  |  | (29.7) | 16.9 | 14.3
Total expenses |  |  |  |  |  |  |  |  | 4,024.8 | 3,955.0 | 3,482.7
Earnings (loss) before income taxes |  |  |  |  |  |  |  |  | 1,142.3 | 946.5 | 764.2
Provision (benefit) for income taxes |  |  |  |  |  |  |  |  | 276.3 | 229.2 | 191.0
Net earnings (loss) |  |  |  |  |  |  |  |  | 866.0 | 717.3 | 573.2
Net earnings attributable to noncontrolling interests |  |  |  |  |  |  |  |  | 4.9 | 17.2 | 10.7
Net earnings (loss) attributable to controlling interests |  |  |  |  |  |  |  |  | 861.1 | 700.1 | 562.5
Net foreign exchange (loss) gain |  |  |  |  |  |  |  |  | (2.6) | (1.0) |
Total identifiable assets | 19,185.3 |  |  |  | 16,741.9 |  |  |  | 19,185.3 | 16,741.9 | 13,785.1
Goodwill - net | 6,053.6 |  |  |  | 5,548.9 |  |  |  | 6,053.6 | 5,548.9 | 4,573.6
Amortizable intangible assets - net | 2,376.3 |  |  |  | 2,289.9 |  |  |  | 2,376.3 | 2,289.9 | 1,753.7
Brokerage [Member] | Operating Segments [Member] | Unites States [Member] |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total revenues |  |  |  |  |  |  |  |  | 3,369.4 | 3,234.3 | 2,840.9
Total identifiable assets | 8,897.9 |  |  |  | 8,132.3 |  |  |  | 8,897.9 | 8,132.3 | 6,865.4
Brokerage [Member] | Operating Segments [Member] | United Kingdom [Member] |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total revenues |  |  |  |  |  |  |  |  | 993.7 | 921.8 | 738.5
Total identifiable assets | 6,135.1 |  |  |  | 4,964.5 |  |  |  | 6,135.1 | 4,964.5 | 3,758.5
Brokerage [Member] | Operating Segments [Member] | Australia [Member] |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total revenues |  |  |  |  |  |  |  |  | 216.1 | 211.3 | 195.9
Total identifiable assets | 1,373.3 |  |  |  | 1,217.9 |  |  |  | 1,373.3 | 1,217.9 | 1,096.1
Brokerage [Member] | Operating Segments [Member] | Canada [Member] |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total revenues |  |  |  |  |  |  |  |  | 243.8 | 221.4 | 181.1
Total identifiable assets | 1,053.6 |  |  |  | 913.6 |  |  |  | 1,053.6 | 913.6 | 783.1
Brokerage [Member] | Operating Segments [Member] | New Zealand [Member] |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total revenues |  |  |  |  |  |  |  |  | 141.8 | 145.6 | 141.7
Total identifiable assets | 766.0 |  |  |  | 695.9 |  |  |  | 766.0 | 695.9 | 688.5
Brokerage [Member] | Operating Segments [Member] | Other Foreign [Member] |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total revenues |  |  |  |  |  |  |  |  | 202.3 | 167.1 | 148.8
Total identifiable assets | 959.4 |  |  |  | 817.7 |  |  |  | 959.4 | 817.7 | 593.5
Brokerage [Member] | Commissions [Member] | Operating Segments [Member] |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Revenues before reimbursements |  |  |  |  |  |  |  |  | 3,591.9 | 3,320.6 | 2,920.7
Brokerage [Member] | Broker Fees [Member] | Operating Segments [Member] |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Revenues before reimbursements |  |  |  |  |  |  |  |  | 1,136.9 | 1,074.2 | 958.5
Brokerage [Member] | Supplemental Revenue [Member] | Operating Segments [Member] |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Revenues before reimbursements |  |  |  |  |  |  |  |  | 221.9 | 210.5 | 189.9
Brokerage [Member] | Contingent Revenue [Member] | Operating Segments [Member] |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Revenues before reimbursements |  |  |  |  |  |  |  |  | 147.0 | 135.6 | 98.0
Brokerage [Member] | Investment income [Member] | Operating Segments [Member] |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Revenues before reimbursements |  |  |  |  |  |  |  |  | 75.2 | 85.3 | 69.6
Brokerage [Member] | Net (Losses) Gains on Divestitures [Member] | Operating Segments [Member] |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Revenues before reimbursements |  |  |  |  |  |  |  |  | (5.8) | 75.3 | 10.2
Risk Management [Member] |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Goodwill - net | 70.5 |  |  |  | 66.6 |  |  |  | 70.5 | 66.6 | 49.3
Risk Management [Member] | Unites States [Member] |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Goodwill - net | 33.2 |  |  |  | 33.1 |  |  |  | 33.2 | 33.1 |
Risk Management [Member] | United Kingdom [Member] |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Goodwill - net | 15.1 |  |  |  | 12.9 |  |  |  | 15.1 | 12.9 |
Risk Management [Member] | Australia [Member] |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Goodwill - net | 11.5 |  |  |  | 10.5 |  |  |  | 11.5 | 10.5 |
Risk Management [Member] | New Zealand [Member] |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Goodwill - net | 10.7 |  |  |  | 10.1 |  |  |  | 10.7 | 10.1 |
Risk Management [Member] | Operating Segments [Member] |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Revenues before reimbursements |  |  |  |  |  |  |  |  | 821.7 | 838.5 | 798.3
Reimbursements |  |  |  |  |  |  |  |  | 151.7 | 138.6 | 141.6
Total revenues |  |  |  |  |  |  |  |  | 973.4 | 977.1 | 939.9
Compensation |  |  |  |  |  |  |  |  | 517.5 | 515.7 | 489.7
Operating |  |  |  |  |  |  |  |  | 162.6 | 184.9 | 174.6
Reimbursements |  |  |  |  |  |  |  |  | 151.7 | 138.6 | 141.6
Depreciation |  |  |  |  |  |  |  |  | 49.4 | 46.2 | 38.7
Amortization |  |  |  |  |  |  |  |  | 6.0 | 4.9 | 4.3
Change in estimated acquisition earnout payables |  |  |  |  |  |  |  |  | (3.2) | (1.6) | (4.7)
Total expenses |  |  |  |  |  |  |  |  | 884.0 | 888.7 | 844.2
Earnings (loss) before income taxes |  |  |  |  |  |  |  |  | 89.4 | 88.4 | 95.7
Provision (benefit) for income taxes |  |  |  |  |  |  |  |  | 22.5 | 22.2 | 25.3
Net earnings (loss) |  |  |  |  |  |  |  |  | 66.9 | 66.2 | 70.4
Net earnings (loss) attributable to controlling interests |  |  |  |  |  |  |  |  | 66.9 | 66.2 | 70.4
Net foreign exchange (loss) gain |  |  |  |  |  |  |  |  | (0.1) | (0.1) |
Total identifiable assets | 973.9 |  |  |  | 898.1 |  |  |  | 973.9 | 898.1 | 748.1
Goodwill - net | 70.5 |  |  |  | 66.6 |  |  |  | 70.5 | 66.6 | 49.3
Amortizable intangible assets - net | 23.6 |  |  |  | 28.8 |  |  |  | 23.6 | 28.8 | 19.3
Risk Management [Member] | Operating Segments [Member] | Unites States [Member] |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total revenues |  |  |  |  |  |  |  |  | 816.4 | 828.4 | 789.7
Total identifiable assets | 716.2 |  |  |  | 655.6 |  |  |  | 716.2 | 655.6 | 571.4
Risk Management [Member] | Operating Segments [Member] | United Kingdom [Member] |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total revenues |  |  |  |  |  |  |  |  | 40.7 | 41.6 | 35.4
Total identifiable assets | 139.2 |  |  |  | 126.6 |  |  |  | 139.2 | 126.6 | 103.8
Risk Management [Member] | Operating Segments [Member] | Australia [Member] |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total revenues |  |  |  |  |  |  |  |  | 98.4 | 87.3 | 94.7
Total identifiable assets | 89.6 |  |  |  | 90.0 |  |  |  | 89.6 | 90.0 | 47.2
Risk Management [Member] | Operating Segments [Member] | Canada [Member] |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total revenues |  |  |  |  |  |  |  |  | 5.3 | 4.6 | 4.3
Total identifiable assets | 4.8 |  |  |  | 3.1 |  |  |  | 4.8 | 3.1 | 4.4
Risk Management [Member] | Operating Segments [Member] | New Zealand [Member] |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total revenues |  |  |  |  |  |  |  |  | 12.6 | 15.2 | 15.8
Total identifiable assets | 24.1 |  |  |  | 22.8 |  |  |  | 24.1 | 22.8 | 21.3
Risk Management [Member] | Broker Fees [Member] | Operating Segments [Member] |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Revenues before reimbursements |  |  |  |  |  |  |  |  | 821.0 | 836.9 | 797.8
Risk Management [Member] | Investment income [Member] | Operating Segments [Member] |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Revenues before reimbursements |  |  |  |  |  |  |  |  | 0.7 | 1.6 | 0.5
Corporate [Member] |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Goodwill - net | 2.9 |  |  |  | 3.0 |  |  |  | 2.9 | 3.0 | 2.7
Corporate [Member] | Other Foreign [Member] |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Goodwill - net | 2.9 |  |  |  | 3.0 |  |  |  | 2.9 | 3.0 |
Corporate [Member] | Operating Segments [Member] |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Revenues before reimbursements |  |  |  |  |  |  |  |  | 863.1 | 1,316.4 | 1,747.2
Total revenues |  |  |  |  |  |  |  |  | 863.1 | 1,316.4 | 1,747.2
Compensation |  |  |  |  |  |  |  |  | 66.5 | 77.9 | 89.5
Operating |  |  |  |  |  |  |  |  | 56.7 | 87.1 | 55.6
Cost of revenues from clean coal activities |  |  |  |  |  |  |  |  | 882.1 | 1,352.8 | 1,816.0
Interest |  |  |  |  |  |  |  |  | 196.4 | 179.8 | 138.4
Depreciation |  |  |  |  |  |  |  |  | 22.2 | 27.6 | 28.2
Total expenses |  |  |  |  |  |  |  |  | 1,223.9 | 1,725.2 | 2,127.7
Earnings (loss) before income taxes |  |  |  |  |  |  |  |  | (360.8) | (408.8) | (380.5)
Provision (benefit) for income taxes |  |  |  |  |  |  |  |  | (286.0) | (341.1) | (412.8)
Net earnings (loss) |  |  |  |  |  |  |  |  | (74.8) | (67.7) | 32.3
Net earnings attributable to noncontrolling interests |  |  |  |  |  |  |  |  | 34.4 | 29.8 | 31.7
Net earnings (loss) attributable to controlling interests |  |  |  |  |  |  |  |  | (109.2) | (97.5) | 0.6
Net foreign exchange (loss) gain |  |  |  |  |  |  |  |  | (0.2) | (5.6) | 2.9
Total identifiable assets | 2,172.2 |  |  |  | 1,994.8 |  |  |  | 2,172.2 | 1,994.8 | 1,800.8
Goodwill - net | 2.9 |  |  |  | 3.0 |  |  |  | 2.9 | 3.0 | 2.7
Corporate [Member] | Operating Segments [Member] | Unites States [Member] |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total revenues |  |  |  |  |  |  |  |  | 863.1 | 1,316.4 | 1,747.2
Total identifiable assets | $ 2,172.2 |  |  |  | $ 1,994.8 |  |  |  | 2,172.2 | 1,994.8 | 1,800.8
Corporate [Member] | Clean Coal Activities [Member] | Operating Segments [Member] |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Revenues before reimbursements |  |  |  |  |  |  |  |  | 863.5 | 1,319.3 | 1,746.3
Corporate [Member] | Other Net (Losses) Gains [Member] | Operating Segments [Member] |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Revenues before reimbursements |  |  |  |  |  |  |  |  | $ (0.4) | $ (2.9) | $ 0.9

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