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Employee Benefit Plans (Q3) (Tables) | 9 Months Ended | 12 Months Ended
--- | --- | ---
Sep. 30, 2018 | Dec. 31, 2017
Defined Benefit Pension Plans |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Components of Net Periodic Benefit Cost | The following tables provide information regarding the Company’s defined benefit pension plans summarized by U.S. and international components.
|  | U.S. |  |  | International |
|  | Three Months Ended September 30, |  |  | Three Months Ended September 30, |
In thousands, except percentages |  | 2018 |  |  | 2017 |  |  | 2018 |  |  | 2017 |
Net periodic benefit cost |  |  |  |  |  |  |  |  |  |  |  |
Service cost |  | $ | 87 |  |  | $ | 86 |  |  | $ | 691 |  |  | $ | 614 |
Interest cost |  |  | 333 |  |  |  | 356 |  |  |  | 1,834 |  |  |  | 1,677 |
Expected return on plan assets |  |  | (445 | ) |  |  | (433 | ) |  |  | (3,466 | ) |  |  | (2,910 | )
Net amortization/deferrals |  |  | 243 |  |  |  | 248 |  |  |  | 554 |  |  |  | 685 |
Net periodic benefit cost (credit) |  | $ | 218 |  |  | $ | 257 |  |  | $ | (387 | ) |  | $ | 66 |
|  | U.S. |  |  | International |
|  | Nine Months Ended September 30, |  |  | Nine Months Ended September 30, |
In thousands, except percentages |  | 2018 |  |  | 2017 |  |  | 2018 |  |  | 2017 |
Net periodic benefit cost |  |  |  |  |  |  |  |  |  |  |  |
Service cost |  | $ | 261 |  |  | $ | 258 |  |  | $ | 2,073 |  |  | $ | 1,842 |
Interest cost |  |  | 999 |  |  |  | 1,068 |  |  |  | 5,502 |  |  |  | 5,031 |
Expected return on plan assets |  |  | (1,335 | ) |  |  | (1,299 | ) |  |  | (10,398 | ) |  |  | (8,730 | )
Net amortization/deferrals |  |  | 729 |  |  |  | 744 |  |  |  | 1,662 |  |  |  | 2,055 |
Net periodic benefit cost (credit) |  | $ | 654 |  |  | $ | 771 |  |  | $ | (1,161 | ) |  | $ | 198 |
Assumptions |  |  |  |  |  |  |  |  |  |  |  |
Discount Rate |  |  | 3.56 | % |  |  | 3.95 | % |  |  | 2.40 | % |  |  | 2.51 | %
Expected long-term rate of return |  |  | 5.15 | % |  |  | 4.95 | % |  |  | 5.10 | % |  |  | 4.93 | %
Rate of compensation increase |  |  | 3.00 | % |  |  | 3.00 | % |  |  | 2.60 | % |  |  | 2.54 | %
| The following tables provide information regarding the Company’s defined benefit pension plans summarized by U.S. and international components. Obligations and Funded Status
|  | U.S. |  |  | International |
In thousands |  | 2017 |  |  | 2016 |  |  | 2017 |  |  | 2016 |
Change in projected benefit obligation |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Obligation at beginning of year |  | $ | (45,512 | ) |  | $ | (46,120 | ) |  | $ | (319,551 | ) |  | $ | (195,311 | )
Opening balance sheet adjustment |  |  | — |  |  |  | — |  |  |  | (5,321 | ) |  |  | — |
Service cost |  |  | (344 | ) |  |  | (337 | ) |  |  | (2,740 | ) |  |  | (1,379 | )
Interest cost |  |  | (1,422 | ) |  |  | (1,475 | ) |  |  | (7,310 | ) |  |  | (5,774 | )
Employee contributions |  |  | — |  |  |  | — |  |  |  | (880 | ) |  |  | (195 | )
Plan curtailments and amendments |  |  | — |  |  |  | — |  |  |  | 4,153 |  |  |  | 2,061 |
Benefits paid |  |  | 3,079 |  |  |  | 3,893 |  |  |  | 12,906 |  |  |  | 9,427 |
Acquisition |  |  | — |  |  |  | — |  |  |  | — |  |  |  | (114,242 | )
Actuarial gain (loss) |  |  | (14 | ) |  |  | (1,473 | ) |  |  | (3,009 | ) |  |  | (33,330 | )
Effect of currency rate changes |  |  | — |  |  |  | — |  |  |  | (31,265 | ) |  |  | 19,192 |
Obligation at end of year |  | $ | (44,213 | ) |  | $ | (45,512 | ) |  | $ | (353,017 | ) |  | $ | (319,551 | )
Change in plan assets |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Fair value of plan assets at beginning of year |  | $ | 35,802 |  |  | $ | 37,640 |  |  | $ | 241,283 |  |  | $ | 168,069 |
Opening balance sheet adjustment |  |  | — |  |  |  | — |  |  |  | 2,058 |  |  |  | — |
Actual return on plan assets |  |  | 4,223 |  |  |  | 2,055 |  |  |  | 19,102 |  |  |  | 20,066 |
Employer contributions |  |  | 486 |  |  |  | — |  |  |  | 13,479 |  |  |  | 6,933 |
Employee contributions |  |  | — |  |  |  | — |  |  |  | 880 |  |  |  | 195 |
Benefits paid |  |  | (3,079 | ) |  |  | (3,893 | ) |  |  | (12,905 | ) |  |  | (9,427 | )
Acquisition |  |  | — |  |  |  | — |  |  |  | — |  |  |  | 70,519 |
Settlements |  |  |  |  |  |  |  |  |  |  | (4,523 | ) |  |  |  |
Effect of currency rate changes |  |  | — |  |  |  | — |  |  |  | 22,228 |  |  |  | (15,072 | )
Fair value of plan assets at end of year |  | $ | 37,432 |  |  | $ | 35,802 |  |  | $ | 281,602 |  |  | $ | 241,283 |
Funded status |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Fair value of plan assets |  | $ | 37,432 |  |  | $ | 35,802 |  |  | $ | 281,602 |  |  | $ | 241,283 |
Benefit obligations |  |  | (44,213 | ) |  |  | (45,512 | ) |  |  | (353,017 | ) |  |  | (319,551 | )
Funded status |  | $ | (6,781 | ) |  | $ | (9,710 | ) |  | $ | (71,415 | ) |  | $ | (78,268 | )
Amounts recognized in the statement of financial position consist of: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Noncurrent assets |  | $ | — |  |  | $ | — |  |  | $ | 10,577 |  |  | $ | 7,130 |
Current liabilities |  |  | — |  |  |  | — |  |  |  | (2,158 | ) |  |  | (2,042 | )
Noncurrent liabilities |  |  | (6,781 | ) |  |  | (9,710 | ) |  |  | (79,834 | ) |  |  | (83,356 | )
Net amount recognized |  | $ | (6,781 | ) |  | $ | (9,710 | ) |  | $ | (71,415 | ) |  | $ | (78,268 | )
Amounts recognized in accumulated other comprehensive income (loss) consist of: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Prior service cost |  |  | (6 | ) |  |  | (8 | ) |  |  | (32 | ) |  |  | (56 | )
Net actuarial loss |  |  | (20,418 | ) |  |  | (23,884 | ) |  |  | (54,043 | ) |  |  | (56,411 | )
Net amount recognized |  | $ | (20,424 | ) |  | $ | (23,892 | ) |  | $ | (54,075 | ) |  | $ | (56,467 | )
Other Postretirement Benefit Plan |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Components of Net Periodic Benefit Cost | The following tables provide information regarding the Company’s postretirement benefit plans summarized by U.S. and international components.
|  | U.S. |  |  | International |
|  | Three Months Ended September 30, |  |  | Three Months Ended September 30, |
In thousands, except percentages |  | 2018 |  |  | 2017 |  |  | 2018 |  |  | 2017 |
Net periodic benefit cost |  |  |  |  |  |  |  |  |  |  |  |
Service cost |  | $ | 1 |  |  | $ | 1 |  |  | $ | 8 |  |  | $ | 7 |
Interest cost |  |  | 81 |  |  |  | 88 |  |  |  | 26 |  |  |  | 24 |
Net amortization/deferrals |  |  | (76 | ) |  |  | (73 | ) |  |  | (4 | ) |  |  | (7 | )
Net periodic benefit cost |  | $ | 6 |  |  | $ | 16 |  |  | $ | 30 |  |  | $ | 24 |
|  | U.S. |  |  | International |
|  | Nine Months Ended September 30, |  |  | Nine Months Ended September 30, |
In thousands, except percentages |  | 2018 |  |  | 2017 |  |  | 2018 |  |  | 2017 |
Net periodic benefit cost |  |  |  |  |  |  |  |  |  |  |  |
Service cost |  | $ | 3 |  |  | $ | 3 |  |  | $ | 24 |  |  | $ | 21 |
Interest cost |  |  | 243 |  |  |  | 264 |  |  |  | 78 |  |  |  | 72 |
Net amortization/deferrals |  |  | (228 | ) |  |  | (219 | ) |  |  | (12 | ) |  |  | (21 | )
Net periodic benefit cost |  | $ | 18 |  |  | $ | 48 |  |  | $ | 90 |  |  | $ | 72 |
Assumptions |  |  |  |  |  |  |  |  |  |  |  |
Discount Rate |  |  | 3.43 | % |  |  | 3.76 | % |  |  | 3.21 | % |  |  | 3.46 | %
| The following tables provide information regarding the Company’s post retirement benefit plans summarized by U.S. and international components. Obligations and Funded Status
|  | U.S. |  |  | International |
In thousands |  | 2017 |  |  | 2016 |  |  | 2017 |  |  | 2016 |
Change in projected benefit obligation |  |  |  |  |  |  |  |  |  |  |  |
Obligation at beginning of year |  | $ | (11,876 | ) |  | $ | (12,959 | ) |  | $ | (3,425 | ) |  | $ | (3,290 | )
Service cost |  |  | (5 | ) |  |  | (4 | ) |  |  | (28 | ) |  |  | (29 | )
Interest cost |  |  | (350 | ) |  |  | (389 | ) |  |  | (98 | ) |  |  | (99 | )
Plan amendments |  |  | — |  |  |  | 6 |  |  |  | — |  |  |  | — |
Benefits paid |  |  | 970 |  |  |  | 720 |  |  |  | 199 |  |  |  | 133 |
Acquisition |  |  | — |  |  |  | (143 | ) |  |  | — |  |  |  | — |
Actuarial gain (loss) |  |  | (84 | ) |  |  | 893 |  |  |  | (131 | ) |  |  | (42 | )
Effect of currency rate changes |  |  | — |  |  |  | — |  |  |  | (237 | ) |  |  | (98 | )
Obligation at end of year |  | $ | (11,345 | ) |  | $ | (11,876 | ) |  | $ | (3,720 | ) |  | $ | (3,425 | )
Change in plan assets |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Fair value of plan assets at beginning of year |  | $ | — |  |  | $ | — |  |  | $ | — |  |  | $ | — |
Employer contributions |  |  | 970 |  |  |  | 720 |  |  |  | 199 |  |  |  | 133 |
Benefits paid |  |  | (970 | ) |  |  | (720 | ) |  |  | (199 | ) |  |  | (133 | )
Fair value of plan assets at end of year |  | $ | — |  |  | $ | — |  |  | $ | — |  |  | $ | — |
Funded status |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Fair value of plan assets |  | $ | — |  |  | $ | — |  |  | $ | — |  |  | $ | — |
Benefit obligations |  |  | (11,345 | ) |  |  | (11,876 | ) |  |  | (3,720 | ) |  |  | (3,425 | )
Funded status |  | $ | (11,345 | ) |  | $ | (11,876 | ) |  | $ | (3,720 | ) |  | $ | (3,425 | )
|  | U.S. |  |  | International |
In thousands |  | 2017 |  |  | 2016 |  |  | 2017 |  |  | 2016 |
Amounts recognized in the statement of financial position consist of: |  |  |  |  |  |  |  |  |  |  |  |
Current liabilities |  | $ | (1,046 | ) |  | $ | (1,084 | ) |  | $ | (208 | ) |  | $ | (185 | )
Noncurrent liabilities |  |  | (10,299 | ) |  |  | (10,792 | ) |  |  | (3,512 | ) |  |  | (3,160 | )
Net amount recognized |  | $ | (11,345 | ) |  | $ | (11,876 | ) |  | $ | (3,720 | ) |  | $ | (3,345 | )
Amounts recognized in accumulated other comprehensive income (loss) consist of: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Prior service credit |  |  | 19,616 |  |  |  | 21,134 |  |  |  | 9 |  |  |  | 15 |
Net actuarial (loss) gain |  |  | (18,882 | ) |  |  | (20,023 | ) |  |  | 154 |  |  |  | 292 |
Net amount recognized |  | $ | 734 |  |  | $ | 1,111 |  |  | $ | 163 |  |  | $ | 307 |

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