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RETIREMENT AND DEFERRED COMPENSATION PLANS (Details) - USD ($) $ in Thousands | 12 Months Ended |  |  |
--- | --- | --- | --- | ---
Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016 | Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016
United States |  |  |  |  |  |
Change in benefit obligation: |  |  |  |  |  |
Benefit obligation at beginning of year | $ 198,450 | $ 175,879 |  |  |  |
Service cost | 11,396 | 9,706 | $ 9,041 |  |  |
Interest cost | 6,878 | 7,010 | 6,776 |  |  |
Actuarial (gain) loss | (23,510) | 21,085 |  |  |  |
Benefits paid | (12,411) | (15,230) |  |  |  |
Benefit obligation at end of year | 180,803 | 198,450 | 175,879 |  |  |
Change in plan assets: |  |  |  |  |  |
Fair value of plan assets at beginning of year | 169,600 | 126,246 |  |  |  |
Actual return on plan assets | (7,642) | 18,372 |  |  |  |
Employer contribution | 20,411 | 40,212 |  |  |  |
Benefits paid | (12,411) | (15,230) |  |  |  |
Fair value of plan assets at end of year | 169,958 | 169,600 | 126,246 |  |  |
Funded status at end of year |  |  |  | $ (10,845) | $ (28,850) |
Funded status amounts recognized in Consolidated Balance Sheet |  |  |  |  |  |
Non-current assets |  |  |  | 207 |  |
Current liabilities |  |  |  | (430) | (423) |
Non-current liabilities |  |  |  | (10,622) | (28,427) |
Funded status amount |  |  |  | (10,845) | (28,850) |
Amounts recognized in accumulated other comprehensive loss |  |  |  |  |  |
Net actuarial loss |  |  |  | 48,776 | 58,260 |
Tax effects |  |  |  | (17,876) | (20,057) |
Net amount recognized |  |  |  | 30,900 | 38,203 |
Changes in benefit obligations and plan assets recognized in other comprehensive income |  |  |  |  |  |
Current year actuarial gain (loss) | 4,611 | (12,593) | (4,335) |  |  |
Amortization of net loss | 4,873 | 3,205 | 3,283 |  |  |
Net amount recognized | 9,484 | (9,388) | (1,052) |  |  |
Amounts in accumulated other comprehensive loss expected to be recognized as components of periodic benefit cost in next fiscal year |  |  |  |  |  |
Amortization of net loss |  |  |  | 2,009 |  |
Amount expected to be recognized in next fiscal year |  |  |  | 2,009 |  |
Components of net periodic benefit cost: |  |  |  |  |  |
Service cost | 11,396 | 9,706 | 9,041 |  |  |
Interest cost | 6,878 | 7,010 | 6,776 |  |  |
Expected return on plan assets | (11,257) | (9,880) | (8,471) |  |  |
Amortization of net loss | 4,873 | 3,205 | 3,283 |  |  |
Net periodic benefit cost | $ 11,890 | $ 10,041 | $ 10,629 |  |  |
Accumulated benefit obligation |  |  |  | 163,000 | 178,900 |
Projected benefit obligation ("PBO"), ABO, and fair value of plan assets for all pension plans with an ABO in excess of plan assets |  |  |  |  |  |
Projected benefit obligation |  |  |  | 11,052 | 11,478 |
Accumulated benefit obligation |  |  |  | 9,216 | 9,291 |
Fair value of plan assets |  |  |  | 0 |  |
PBO, ABO, and fair value of plan assets for all pension plans with a PBO in excess of plan assets |  |  |  |  |  |
Projected benefit obligation |  |  |  | 11,052 | 198,450 |
Accumulated benefit obligation |  |  |  | 9,216 | 178,878 |
Fair value of plan assets |  |  |  | $ 0 | $ 169,600 |
Weighted-average assumptions used to determine benefit obligations |  |  |  |  |  |
Discount rate (as a percent) |  |  |  | 4.20% | 3.55% | 4.05%
Rate of compensation increase (as a percent) |  |  |  | 4.00% | 4.00% | 4.00%
Weighted-average assumptions used to determine net periodic benefit cost |  |  |  |  |  |
Discount rate (as a percent) | 3.55% | 4.05% | 4.24% |  |  |
Expected long-term return on plan assets (as a percent) | 7.00% | 7.00% | 7.00% |  |  |
Rate of compensation increase (as a percent) | 4.00% | 4.00% | 4.00% |  |  |
Plan Assets: |  |  |  |  |  |
Weighted-average asset allocations (as a percent) |  |  |  | 100.00% | 100.00% |
Total Investments in Fair Value Hierarchy |  |  |  | $ 107,943 | $ 113,347 |
Total Investments | $ 169,600 | $ 126,246 | $ 126,246 | 169,958 | 169,600 | $ 126,246
Minimum funding requirement | 0 |  |  |  |  |
Expected contribution in next fiscal year |  |  |  | 400 |  |
United States | Cash and Short Term Securities |  |  |  |  |  |
Plan Assets: |  |  |  |  |  |
Total Investments in Fair Value Hierarchy |  |  |  | $ 8,964 | $ 21,644 |
United States | Equity Securities |  |  |  |  |  |
Plan Assets: |  |  |  |  |  |
Weighted-average asset allocations (as a percent) |  |  |  | 44.00% | 42.00% |
Target allocation (as a percent) |  |  |  | 60.00% |  |
Total Investments in Fair Value Hierarchy |  |  |  | $ 66,707 | $ 63,799 |
United States | Fixed Income Funds |  |  |  |  |  |
Plan Assets: |  |  |  |  |  |
Weighted-average asset allocations (as a percent) |  |  |  | 29.00% | 25.00% |
Total Investments in Fair Value Hierarchy |  |  |  | $ 32,272 | $ 27,904 |
United States | Hedge Fund |  |  |  |  |  |
Plan Assets: |  |  |  |  |  |
Weighted-average asset allocations (as a percent) |  |  |  | 10.00% | 9.00% |
United States | Infrastructure |  |  |  |  |  |
Plan Assets: |  |  |  |  |  |
Weighted-average asset allocations (as a percent) |  |  |  | 7.00% | 6.00% |
United States | Money market |  |  |  |  |  |
Plan Assets: |  |  |  |  |  |
Weighted-average asset allocations (as a percent) |  |  |  | 5.00% | 13.00% |
United States | Fixed income securities and infrastructure |  |  |  |  |  |
Plan Assets: |  |  |  |  |  |
Target allocation (as a percent) |  |  |  | 40.00% |  |
United States | Real Estate Funds |  |  |  |  |  |
Plan Assets: |  |  |  |  |  |
Weighted-average asset allocations (as a percent) |  |  |  | 5.00% | 5.00% |
United States | Level 1 |  |  |  |  |  |
Change in plan assets: |  |  |  |  |  |
Fair value of plan assets at beginning of year | 113,347 |  |  |  |  |
Fair value of plan assets at end of year | 107,943 | 113,347 |  |  |  |
Plan Assets: |  |  |  |  |  |
Total Investments in Fair Value Hierarchy |  |  |  | $ 107,943 | $ 113,347 |
Total Investments | 113,347 | 113,347 |  | 107,943 | 113,347 |
United States | Level 1 | Cash and Short Term Securities |  |  |  |  |  |
Plan Assets: |  |  |  |  |  |
Total Investments in Fair Value Hierarchy |  |  |  | 8,964 | 21,644 |
United States | Level 1 | Cash and Short Term Securities | USD |  |  |  |  |  |
Plan Assets: |  |  |  |  |  |
Total Investments in Fair Value Hierarchy |  |  |  | 8,964 | 21,644 |
United States | Level 1 | Equity Securities |  |  |  |  |  |
Plan Assets: |  |  |  |  |  |
Total Investments in Fair Value Hierarchy |  |  |  | 66,707 | 63,799 |
United States | Level 1 | US Large Cap Equities |  |  |  |  |  |
Plan Assets: |  |  |  |  |  |
Total Investments in Fair Value Hierarchy |  |  |  | 38,804 | 37,456 |
United States | Level 1 | US Small Cap Equities |  |  |  |  |  |
Plan Assets: |  |  |  |  |  |
Total Investments in Fair Value Hierarchy |  |  |  | 7,747 | 7,569 |
United States | Level 1 | International Equities |  |  |  |  |  |
Plan Assets: |  |  |  |  |  |
Total Investments in Fair Value Hierarchy |  |  |  | 20,156 | 18,774 |
United States | Level 1 | Fixed Income Funds |  |  |  |  |  |
Plan Assets: |  |  |  |  |  |
Total Investments in Fair Value Hierarchy |  |  |  | 32,272 | 27,904 |
United States | Net Asset Value per Share |  |  |  |  |  |
Plan Assets: |  |  |  |  |  |
Investments at Net Asset Value per Share |  |  |  | 62,015 | 56,253 |
Foreign Plans |  |  |  |  |  |
Change in benefit obligation: |  |  |  |  |  |
Benefit obligation at beginning of year | 109,030 | 93,178 |  |  |  |
Service cost | 5,954 | 5,526 | 4,556 |  |  |
Interest cost | 1,828 | 1,747 | 1,892 |  |  |
Special termination benefit charge | 62 |  |  |  |  |
Curtailment/Settlement | (1,751) |  |  |  |  |
Business acquired | 1,937 |  |  |  |  |
Prior service cost | 35 | 1,419 |  |  |  |
Actuarial (gain) loss | (3,743) | (2,653) |  |  |  |
Benefits paid | (3,288) | (3,489) |  |  |  |
Foreign currency translation adjustment | (5,153) | 13,302 |  |  |  |
Benefit obligation at end of year | 104,911 | 109,030 | 93,178 |  |  |
Change in plan assets: |  |  |  |  |  |
Fair value of plan assets at beginning of year | 73,384 | 61,912 |  |  |  |
Actual return on plan assets | (487) | 2,472 |  |  |  |
Employer contribution | 2,780 | 3,824 |  |  |  |
Benefits paid | (3,288) | (3,489) |  |  |  |
Foreign currency translation adjustment | (3,397) | 8,665 |  |  |  |
Fair value of plan assets at end of year | 68,992 | 73,384 | 61,912 |  |  |
Funded status at end of year |  |  |  | (35,919) | (35,646) |
Funded status amounts recognized in Consolidated Balance Sheet |  |  |  |  |  |
Non-current assets |  |  |  | 500 | 297 |
Current liabilities |  |  |  | (8) | (9) |
Non-current liabilities |  |  |  | (36,411) | (35,934) |
Funded status amount |  |  |  | (35,919) | (35,646) |
Amounts recognized in accumulated other comprehensive loss |  |  |  |  |  |
Net actuarial loss |  |  |  | 29,761 | 33,703 |
Net prior service cost |  |  |  | 4,656 | 5,341 |
Tax effects |  |  |  | (4,855) | (12,651) |
Net amount recognized |  |  |  | 29,562 | 26,393 |
Changes in benefit obligations and plan assets recognized in other comprehensive income |  |  |  |  |  |
Current year actuarial gain (loss) | 534 | 2,952 | (6,251) |  |  |
Current year prior service cost | (35) | (1,399) | (656) |  |  |
Recognition due to curtailment | 1,692 |  |  |  |  |
Amortization of net loss | 1,716 | 1,895 | 1,540 |  |  |
Amortization of prior service cost | 720 | 400 | 350 |  |  |
Net amount recognized | 4,627 | 3,848 | (5,017) |  |  |
Amounts in accumulated other comprehensive loss expected to be recognized as components of periodic benefit cost in next fiscal year |  |  |  |  |  |
Amortization of net loss |  |  |  | 1,465 |  |
Amortization of prior service cost |  |  |  | 458 |  |
Amount expected to be recognized in next fiscal year |  |  |  | 1,923 |  |
Components of net periodic benefit cost: |  |  |  |  |  |
Service cost | 5,954 | 5,526 | 4,556 |  |  |
Interest cost | 1,828 | 1,747 | 1,892 |  |  |
Expected return on plan assets | (2,610) | (2,409) | (2,181) |  |  |
Amortization of net loss | 1,716 | 1,895 | 1,540 |  |  |
Amortization of prior service cost | 720 | 400 | 350 |  |  |
Net periodic benefit cost | 7,608 | 7,159 | 6,157 |  |  |
Curtailment | (59) |  |  |  |  |
Special termination benefit charge | 62 |  |  |  |  |
Total net periodic benefit cost | $ 7,611 | $ 7,159 | $ 6,157 |  |  |
Accumulated benefit obligation |  |  |  | 80,900 | 84,700 |
Projected benefit obligation ("PBO"), ABO, and fair value of plan assets for all pension plans with an ABO in excess of plan assets |  |  |  |  |  |
Projected benefit obligation |  |  |  | 93,029 | 89,618 |
Accumulated benefit obligation |  |  |  | 68,981 | 65,524 |
Fair value of plan assets |  |  |  | 56,611 | 54,052 |
PBO, ABO, and fair value of plan assets for all pension plans with a PBO in excess of plan assets |  |  |  |  |  |
Projected benefit obligation |  |  |  | 92,555 | 84,799 |
Accumulated benefit obligation |  |  |  | 68,506 | 59,383 |
Fair value of plan assets |  |  |  | $ 56,136 | $ 49,233 |
Weighted-average assumptions used to determine benefit obligations |  |  |  |  |  |
Discount rate (as a percent) |  |  |  | 1.82% | 1.62% | 1.65%
Rate of compensation increase (as a percent) |  |  |  | 3.01% | 3.02% | 3.00%
Weighted-average assumptions used to determine net periodic benefit cost |  |  |  |  |  |
Discount rate (as a percent) | 1.62% | 1.65% | 2.10% |  |  |
Expected long-term return on plan assets (as a percent) | 3.66% | 3.66% | 3.66% |  |  |
Rate of compensation increase (as a percent) | 3.02% | 3.00% | 3.00% |  |  |
Plan Assets: |  |  |  |  |  |
Weighted-average asset allocations (as a percent) |  |  |  | 100.00% | 100.00% |
Total Investments in Fair Value Hierarchy |  |  |  | $ 68,992 | $ 73,384 |
Total Investments | $ 73,384 | $ 61,912 | $ 61,912 | 68,992 | 73,384 | $ 61,912
Expected contribution in next fiscal year |  |  |  | 4,300 |  |
Foreign Plans | Cash and Short Term Securities |  |  |  |  |  |
Plan Assets: |  |  |  |  |  |
Total Investments in Fair Value Hierarchy |  |  |  | $ 718 | $ 432 |
Foreign Plans | Equity Securities |  |  |  |  |  |
Plan Assets: |  |  |  |  |  |
Weighted-average asset allocations (as a percent) |  |  |  | 4.00% | 4.00% |
Total Investments in Fair Value Hierarchy |  |  |  | $ 2,591 | $ 3,111 |
Foreign Plans | Fixed Income Funds |  |  |  |  |  |
Plan Assets: |  |  |  |  |  |
Weighted-average asset allocations (as a percent) |  |  |  | 1.00% | 1.00% |
Total Investments in Fair Value Hierarchy |  |  |  | $ 717 | $ 779 |
Foreign Plans | Corporate debts securities |  |  |  |  |  |
Plan Assets: |  |  |  |  |  |
Weighted-average asset allocations (as a percent) |  |  |  | 3.00% | 3.00% |
Total Investments in Fair Value Hierarchy |  |  |  | $ 2,097 | $ 2,256 |
Foreign Plans | Investment Funds |  |  |  |  |  |
Plan Assets: |  |  |  |  |  |
Weighted-average asset allocations (as a percent) |  |  |  | 91.00% | 91.00% |
Target allocation (as a percent) |  |  |  | 100.00% |  |
Total Investments in Fair Value Hierarchy |  |  |  | $ 62,869 | $ 66,807 |
Foreign Plans | Money market |  |  |  |  |  |
Plan Assets: |  |  |  |  |  |
Weighted-average asset allocations (as a percent) |  |  |  | 1.00% | 1.00% |
Foreign Plans | Level 1 |  |  |  |  |  |
Change in plan assets: |  |  |  |  |  |
Fair value of plan assets at beginning of year | 31,387 |  |  |  |  |
Fair value of plan assets at end of year | 28,245 | 31,387 |  |  |  |
Plan Assets: |  |  |  |  |  |
Total Investments in Fair Value Hierarchy |  |  |  | $ 28,245 | $ 31,387 |
Total Investments | 31,387 | 31,387 |  | 28,245 | 31,387 |
Foreign Plans | Level 1 | Cash and Short Term Securities |  |  |  |  |  |
Plan Assets: |  |  |  |  |  |
Total Investments in Fair Value Hierarchy |  |  |  | 718 | 432 |
Foreign Plans | Level 1 | Cash and Short Term Securities | EUR |  |  |  |  |  |
Plan Assets: |  |  |  |  |  |
Total Investments in Fair Value Hierarchy |  |  |  | 718 | 432 |
Foreign Plans | Level 1 | Equity Securities |  |  |  |  |  |
Plan Assets: |  |  |  |  |  |
Total Investments in Fair Value Hierarchy |  |  |  | 2,591 | 3,111 |
Foreign Plans | Level 1 | International Equities |  |  |  |  |  |
Plan Assets: |  |  |  |  |  |
Total Investments in Fair Value Hierarchy |  |  |  | 2,591 | 3,111 |
Foreign Plans | Level 1 | Fixed Income Funds |  |  |  |  |  |
Plan Assets: |  |  |  |  |  |
Total Investments in Fair Value Hierarchy |  |  |  | 717 | 779 |
Foreign Plans | Level 1 | Corporate debts securities |  |  |  |  |  |
Plan Assets: |  |  |  |  |  |
Total Investments in Fair Value Hierarchy |  |  |  | 2,097 | 2,256 |
Foreign Plans | Level 1 | Euro Corporate Bonds |  |  |  |  |  |
Plan Assets: |  |  |  |  |  |
Total Investments in Fair Value Hierarchy |  |  |  | 2,097 | 2,256 |
Foreign Plans | Level 1 | Investment Funds |  |  |  |  |  |
Plan Assets: |  |  |  |  |  |
Total Investments in Fair Value Hierarchy |  |  |  | 22,122 | 24,810 |
Foreign Plans | Level 1 | Mutual Funds in Equities |  |  |  |  |  |
Plan Assets: |  |  |  |  |  |
Total Investments in Fair Value Hierarchy |  |  |  | 3,339 | 4,356 |
Foreign Plans | Level 1 | Mutual Funds in Bonds |  |  |  |  |  |
Plan Assets: |  |  |  |  |  |
Total Investments in Fair Value Hierarchy |  |  |  | 18,060 | 19,639 |
Foreign Plans | Level 1 | Mutual Funds Diversified |  |  |  |  |  |
Plan Assets: |  |  |  |  |  |
Total Investments in Fair Value Hierarchy |  |  |  | 723 | 815 |
Foreign Plans | Level 2 |  |  |  |  |  |
Change in plan assets: |  |  |  |  |  |
Fair value of plan assets at beginning of year | 41,997 |  |  |  |  |
Fair value of plan assets at end of year | 40,747 | 41,997 |  |  |  |
Plan Assets: |  |  |  |  |  |
Total Investments in Fair Value Hierarchy |  |  |  | 40,747 | 41,997 |
Total Investments | $ 41,997 | $ 41,997 |  | 40,747 | 41,997 |
Foreign Plans | Level 2 | Investment Funds |  |  |  |  |  |
Plan Assets: |  |  |  |  |  |
Total Investments in Fair Value Hierarchy |  |  |  | 40,747 | 41,997 |
Foreign Plans | Level 2 | Mutual Funds Diversified |  |  |  |  |  |
Plan Assets: |  |  |  |  |  |
Total Investments in Fair Value Hierarchy |  |  |  | 40,747 | 41,997 |
Non-qualified supplemental pension plan | United States |  |  |  |  |  |
Non-qualified supplemental pension plan information |  |  |  |  |  |
Non funded liability |  |  |  | $ 11,100 | $ 11,500 |

X
- Definition The tax effects on net gain (loss), prior service cost (credit), and transition assets (obligations), as well as minimum pension liability if still remaining, included in accumulated other comprehensive income associated with a defined benefit pension or other postretirement plan(s) because they have yet to be recognized as components of net periodic benefit cost. + References No definition available. + Details
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- Definition Fair value of assets that have been segregated and restricted for defined benefit plans, excluding assets measured at net asset value per share. + References No definition available. + Details
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- Definition The total amount of net periodic benefit cost for defined benefit plans for the period. Periodic benefit costs include the following components: service cost, interest cost, expected return on plan assets, gain (loss), prior service cost or credit, transition asset or obligation before adjustment for gain (loss) due to settlements or curtailments. + References No definition available. + Details
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- Definition If aggregate disclosures are presented, the aggregate accumulated benefit obligation for plans with benefit obligations in excess of plan assets as of the measurement date of each statement of financial position presented. + References No definition available. + Details
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- Definition Amount, after tax, of accumulated other comprehensive (income) loss for defined benefit plan, that has not been recognized in net periodic benefit cost (credit). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14A -URI http://asc.fasb.org/extlink&oid=114867106&loc=SL7669686-108580 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 10A -Subparagraph (i-k) -URI http://asc.fasb.org/extlink&oid=114867106&loc=SL7669646-108580 + Details
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- Definition Fair value of investment other than investment in equity security, investment in debt security and equity method investment. Includes, but is not limited to, investment in certain entities that calculate net asset value per share. Example includes, but is not limited to, investment in hedge fund, venture capital fund, private equity fund, and real estate partnership or fund. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 6A -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=99377789&loc=SL6742756-110258 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 35 -Paragraph 54B -URI http://asc.fasb.org/extlink&oid=99392525&loc=SL7495116-110257 + Details
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- Definition Amount of actuarial present value of benefits attributed to employee service rendered, excluding assumptions about future compensation level. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=108410482&loc=d3e1928-114920 + Details
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