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Separate Financial Information of Guarantor Subsidiaries Condensed Consolidated Statements of Operations (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2018 | Sep. 30, 2017 | Sep. 30, 2018 | Sep. 30, 2017
Net Sales | $ 273,255 | $ 261,921 | $ 838,299 | $ 723,771
Cost of Sales | 165,170 | 157,317 | 500,778 | 434,877
Gross Profit | 108,085 | 104,604 | 337,521 | 288,894
Operating Expense: |  |  |  |
Research and Development Expense | 7,506 | 7,907 | 23,408 | 24,239
Selling and Administrative Expense | 85,140 | 85,711 | 269,273 | 246,993
Total Operating Expense | 92,646 | 93,618 | 292,681 | 271,232
Profit from Operations | 15,439 | 10,986 | 44,840 | 17,662
Other Income (Expense): |  |  |  |
Equity in Earnings of Affiliates | 0 | 0 | 0 | 0
Interest (Expense) Income, Net | (5,147) | (5,395) | (15,196) | (17,145)
Intercompany Interest Income (Expense) | 0 | 0 | 0 | 0
Net Foreign Currency Transaction Losses | (295) | (842) | (1,381) | (2,375)
Other Expense, Net | (130) | (422) | (890) | (774)
Total Other Expense, Net | (5,572) | (6,659) | (17,467) | (20,294)
Profit (Loss) Before Income Taxes | 9,867 | 4,327 | 27,373 | (2,632)
Income Tax Expense | 158 | 731 | 1,598 | 385
Net Earnings (Loss) Including Noncontrolling Interest | 9,709 | 3,596 | 25,775 | (3,017)
Net Earnings (Loss) Attributable to Noncontrolling Interest | 33 | 37 | 81 | (28)
Net Earnings (Loss) Attributable to Tennant Company | 9,676 | 3,559 | 25,694 | (2,989)
Eliminations |  |  |  |
Net Sales | (144,499) | (127,866) | (423,205) | (386,844)
Cost of Sales | (144,376) | (128,591) | (421,821) | (387,748)
Gross Profit | (123) | 725 | (1,384) | 904
Operating Expense: |  |  |  |
Research and Development Expense | 0 | 0 | 0 | 0
Selling and Administrative Expense | 811 | 0 | 811 | 0
Total Operating Expense | 811 | 0 | 811 | 0
Profit from Operations | (934) | 725 | (2,195) | 904
Other Income (Expense): |  |  |  |
Equity in Earnings of Affiliates | (5,723) | (2,415) | (25,247) | (8,993)
Interest (Expense) Income, Net | (9) | (9) | (28) | (22)
Intercompany Interest Income (Expense) | 0 | 0 | 0 | 0
Net Foreign Currency Transaction Losses | 0 | 0 | 0 | 0
Other Expense, Net | 785 | (23) | 725 | (58)
Total Other Expense, Net | (4,947) | (2,447) | (24,550) | (9,073)
Profit (Loss) Before Income Taxes | (5,881) | (1,722) | (26,745) | (8,169)
Income Tax Expense | (365) | (4,853) | (4,225) | (11,474)
Net Earnings (Loss) Including Noncontrolling Interest | (5,516) | 3,131 | (22,520) | 3,305
Net Earnings (Loss) Attributable to Noncontrolling Interest | (33) | (37) | (81) | 28
Net Earnings (Loss) Attributable to Tennant Company | (5,483) | 3,168 | (22,439) | 3,277
Parent |  |  |  |
Net Sales | 126,110 | 111,835 | 366,093 | 337,034
Cost of Sales | 86,781 | 76,974 | 249,065 | 230,753
Gross Profit | 39,329 | 34,861 | 117,028 | 106,281
Operating Expense: |  |  |  |
Research and Development Expense | 6,096 | 6,312 | 18,625 | 20,838
Selling and Administrative Expense | 26,765 | 23,498 | 84,478 | 85,697
Total Operating Expense | 32,861 | 29,810 | 103,103 | 106,535
Profit from Operations | 6,468 | 5,051 | 13,925 | (254)
Other Income (Expense): |  |  |  |
Equity in Earnings of Affiliates | 5,256 | 2,039 | 19,657 | 7,493
Interest (Expense) Income, Net | (5,230) | (5,275) | (15,726) | (16,866)
Intercompany Interest Income (Expense) | 3,621 | 3,774 | 10,989 | 8,742
Net Foreign Currency Transaction Losses | (69) | 357 | (354) | 553
Other Expense, Net | (179) | (1,619) | (1,118) | (2,300)
Total Other Expense, Net | 3,399 | (724) | 13,448 | (2,378)
Profit (Loss) Before Income Taxes | 9,867 | 4,327 | 27,373 | (2,632)
Income Tax Expense | 158 | 731 | 1,598 | 385
Net Earnings (Loss) Including Noncontrolling Interest | 9,709 | 3,596 | 25,775 | (3,017)
Net Earnings (Loss) Attributable to Noncontrolling Interest | 33 | 37 | 81 | (28)
Net Earnings (Loss) Attributable to Tennant Company | 9,676 | 3,559 | 25,694 | (2,989)
Guarantor Subsidiaries |  |  |  |
Net Sales | 160,226 | 146,495 | 472,524 | 442,090
Cost of Sales | 135,058 | 120,523 | 395,327 | 363,034
Gross Profit | 25,168 | 25,972 | 77,197 | 79,056
Operating Expense: |  |  |  |
Research and Development Expense | 279 | 86 | 825 | 245
Selling and Administrative Expense | 18,091 | 19,074 | 57,151 | 58,881
Total Operating Expense | 18,370 | 19,160 | 57,976 | 59,126
Profit from Operations | 6,798 | 6,812 | 19,221 | 19,930
Other Income (Expense): |  |  |  |
Equity in Earnings of Affiliates | 262 | 376 | 1,356 | 1,500
Interest (Expense) Income, Net | 0 | 0 | 0 | 0
Intercompany Interest Income (Expense) | (1,450) | (1,455) | (4,308) | (4,323)
Net Foreign Currency Transaction Losses | 4 | 2 | (2) | 0
Other Expense, Net | (473) | (204) | (1,610) | (430)
Total Other Expense, Net | (1,657) | (1,281) | (4,564) | (3,253)
Profit (Loss) Before Income Taxes | 5,141 | 5,531 | 14,657 | 16,677
Income Tax Expense | 1,230 | 2,034 | 3,520 | 5,993
Net Earnings (Loss) Including Noncontrolling Interest | 3,911 | 3,497 | 11,137 | 10,684
Net Earnings (Loss) Attributable to Noncontrolling Interest | 0 | 0 | 0 | 0
Net Earnings (Loss) Attributable to Tennant Company | 3,911 | 3,497 | 11,137 | 10,684
Non-Guarantor Subsidiaries |  |  |  |
Net Sales | 131,418 | 131,457 | 422,887 | 331,491
Cost of Sales | 87,707 | 88,411 | 278,207 | 228,838
Gross Profit | 43,711 | 43,046 | 144,680 | 102,653
Operating Expense: |  |  |  |
Research and Development Expense | 1,131 | 1,509 | 3,958 | 3,156
Selling and Administrative Expense | 39,473 | 43,139 | 126,833 | 102,415
Total Operating Expense | 40,604 | 44,648 | 130,791 | 105,571
Profit from Operations | 3,107 | (1,602) | 13,889 | (2,918)
Other Income (Expense): |  |  |  |
Equity in Earnings of Affiliates | 205 | 0 | 4,234 | 0
Interest (Expense) Income, Net | 92 | (111) | 558 | (257)
Intercompany Interest Income (Expense) | (2,171) | (2,319) | (6,681) | (4,419)
Net Foreign Currency Transaction Losses | (230) | (1,201) | (1,025) | (2,928)
Other Expense, Net | (263) | 1,424 | 1,113 | 2,014
Total Other Expense, Net | (2,367) | (2,207) | (1,801) | (5,590)
Profit (Loss) Before Income Taxes | 740 | (3,809) | 12,088 | (8,508)
Income Tax Expense | (865) | 2,819 | 705 | 5,481
Net Earnings (Loss) Including Noncontrolling Interest | 1,605 | (6,628) | 11,383 | (13,989)
Net Earnings (Loss) Attributable to Noncontrolling Interest | 33 | 37 | 81 | (28)
Net Earnings (Loss) Attributable to Tennant Company | $ 1,572 | $ (6,665) | $ 11,302 | $ (13,961)

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