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Retirement Benefit Plans
 12 Months Ended
Dec. 31, 2023
Retirement Benefits [Abstract]  
Retirement Benefit Plans Retirement Benefit Plans
Defined Benefit Plans: The Company maintains defined benefit pension plans that provide benefits based on years of service and average compensation during certain periods. Prior to 2022, the Company amended Combined Plan to freeze pension benefits for all employees. The Company also amended the Supplemental Retirement Benefit Plan (the “SERP”) to freeze all pension benefits. All eligible employees of the Company, including employees whose pension benefits are frozen, receive retirement benefits under defined contribution retirement plans.

During 2023, the Board of Directors of the Company approved the termination of the Combined Plan and participants were offered lump-sum distributions as part of the termination process. As a result of the lump-sum distributions, the Company recognized a non-cash, pension settlement charge of $1.8 million on the "Other, net" line within the accompanying Consolidated Statements of Operations. The $1.8 million charge represents a pro rata portion of the unrecognized net loss recorded in Accumulated other comprehensive loss.

The assumptions used in accounting for the defined benefit plans were as follows for the years ended December 31:
 20232022
Weighted average discount rates for pension benefit obligation
5.02% - 5.04%
5.36% - 5.40%
Weighted average discount rates for net periodic benefit cost
5.36% - 5.40%
2.53% - 2.77%
Expected long-term rate of return on assets for net periodic benefit cost7.00 %7.00 %
Set forth below is detail of the net periodic pension expense (income) for the defined benefit plans for the years ended December 31:
 20232022
Interest cost$1,639 $1,105 
Expected return on plan assets(2,751)(2,707)
Amortization of actuarial loss51 543 
Amortization of prior service cost58 58 
     Settlements1,815 — 
Net periodic pension expense (income)$812 $(1,001)
Set forth below is detail of other changes in plan assets and benefit obligations recognized in other comprehensive loss for the years ended December 31:
 20232022
Current year actuarial (gain) loss$2,560 $1,717 
Amortization of actuarial loss(51)(543)
Amortization of prior service cost(58)(58)
     Settlements(1,815)— 
Total recognized in other comprehensive loss$636 $1,116 
The following table sets forth the changes in the benefit obligation and the plan assets during the year and the funded status of the defined benefit plans at December 31:
 20232022
Change in benefit obligation  
Projected benefit obligation at beginning of year$31,722 $41,663 
Interest cost1,639 1,105 
Actuarial loss (gain)2,261 (8,396)
Benefits paid(2,614)(2,650)
Settlements(4,651)— 
Projected benefit obligation at end of year$28,357 $31,722 
Accumulated benefit obligation at end of year$28,357 $31,722 
Change in plan assets 
Fair value of plan assets at beginning of year$34,485 $44,009 
Actual return on plan assets2,452 (7,405)
Employer contributions456 531 
Benefits paid(2,614)(2,650)
Settlements(4,651)— 
Fair value of plan assets at end of year$30,128 $34,485 
Funded status at end of year$1,771 $2,763 
Amounts recognized in the balance sheets consist of: 
Non-current assets$6,068 $6,991 
Current liabilities(510)(491)
Non-current liabilities(3,787)(3,737)
 $1,771 $2,763 
Components of accumulated other comprehensive loss consist of:
Actuarial loss$11,379 $10,682 
Prior service cost586 645 
Deferred taxes(2,724)(2,490)
 $9,241 $8,837 
The Company recognizes as a component of benefit (income) cost, as of the measurement date, any unrecognized actuarial net gains or losses that exceed 10% of the larger of the projected benefit obligations or the plan assets, defined as the "corridor." Amounts outside the corridor are amortized over the average expected remaining service of active participants expected to benefit under the retiree medical plans or over the average expected remaining lifetime of inactive participants for the pension plans. The (gain) loss amounts recognized in AOCI are not expected to be fully recognized until the plan is terminated or as settlements occur, which would trigger accelerated recognition. Prior service costs resulting from plan changes are also in AOCI.
The Company's policy is to make contributions to fund its pension plans within the range allowed by applicable regulations.
The Company maintains one supplemental defined benefit plan that pays monthly benefits to participants directly out of corporate funds. All other pension benefit payments are made from assets of the pension plans.
Future pension benefit payments expected to be paid from assets of the pension plans are:
2024$2,739 
20252,636 
20262,588 
20272,533 
20282,473 
2029 - 203311,129 
 $24,098 
The expected long-term rate of return on defined benefit plan assets reflects management's expectations of long-term rates of return on funds invested to provide for benefits included in the projected benefit obligations. In establishing the expected long-term rate of return assumption for plan assets, the Company considers the historical rates of return over a period of time that is consistent with the long-term nature of the underlying obligations of these plans as well as a forward-looking rate of return. The historical and forward-looking rates of return for each of the asset classes used to determine the Company's estimated rate of return assumption were based upon the rates of return earned or expected to be earned by investments in the equivalent benchmark market indices for each of the asset classes.
Expected returns for pension plans are based on a calculated market-related value for pension plan assets. Under this methodology, asset gains and losses resulting from actual returns that differ from the Company's expected returns are recognized in the market-related value of assets ratably over three years.
The pension plans maintain investment policies that, among other things, establish a portfolio asset allocation methodology with percentage allocation bands for individual asset classes. The investment policies provide that investments are reallocated between asset classes as balances exceed or fall below the appropriate allocation bands.
The following is the actual allocation percentage and target allocation percentage for the pension plan assets at December 31:
 2023 Actual
Allocation		2022 Actual
Allocation		Target Allocation
Range
Fixed income securities99.1 %34.1 %
90.0% - 100.0%
Cash equivalents0.3 %— %
—% - 5.0%
Money market funds0.6 %0.5 %
0.0% - 10.0%
U.S. equity securities— %44.9 %
0.0% - 0.0%
Non-U.S. equity securities— %20.5 %
0.0% - 0.0%

The 2023 asset allocation reflects the move into fixed income securities to mitigate volatility prior to the termination of the Combined Plan.

The defined benefit pension plans do not have any direct ownership of NACCO common stock.
The fair value of each major category of the Company's pension plan assets are valued using quoted market prices in active markets for identical assets, or Level 1 in the fair value hierarchy. Following are the values as of December 31:
Level 1
 20232022
Fixed income securities$29,866 $11,753 
Cash equivalents81 — 
Money market funds181 178 
U.S. equity securities— 15,499 
Non-U.S. equity securities— 7,055 
Total$30,128 $34,485 
Postretirement Health Care: The Company also maintains health care plans which provide benefits to grandfathered eligible retired employees. All health care plans of the Company have a cap on the Company's share of the costs. The health care plans have network provided benefits which result in cost savings for the Company. These plans have no assets. Under the Company's current policy, plan benefits are funded at the time they are due to participants.
The assumptions used in accounting for the postretirement health care plans are set forth below for the years ended December 31:
 20232022
Weighted average discount rates for benefit obligation4.98 %5.29 %
Weighted average discount rates for net periodic benefit cost5.29 %2.12 %
Health care cost trend rate assumed for next year
6.25% - 6.50%
6.25 %
Rate to which the cost trend rate is assumed to decline (ultimate trend rate)
4.75%
4.50% - 4.75%
Year that the rate reaches the ultimate trend rate
2029 - 2033
2029
Set forth below is detail of the net periodic benefit expense for the postretirement health care plans for the years ended December 31:
 20232022
Service cost$7 $12 
Interest cost77 38 
Amortization of actuarial loss44 64 
Amortization of prior service credit(50)(52)
Net periodic benefit expense$78 $62 
Set forth below is detail of other changes in plan assets and benefit obligations recognized in other comprehensive loss (income) for the years ended December 31:
 20232022
Current year actuarial loss (gain)$173 $(44)
Amortization of actuarial loss(44)(64)
Amortization of prior service credit50 52 
Total recognized in other comprehensive loss (income)$179 $(56)
The following sets forth the changes in benefit obligations during the year and the funded status of the postretirement health care at December 31:
 20232022
Change in benefit obligation  
Benefit obligation at beginning of year$1,551 $1,877 
Service cost7 12 
Interest cost77 38 
Actuarial loss (gain)173 (44)
Benefits paid(229)(332)
Benefit obligation at end of year$1,579 $1,551 
Funded status at end of year$(1,579)$(1,551)
Amounts recognized in the balance sheets consist of: 
Current liabilities$(183)$(206)
Noncurrent liabilities(1,396)(1,345)
 $(1,579)$(1,551)
Components of accumulated other comprehensive loss consist of: 
Actuarial loss$542 $412 
Prior service credit(6)(56)
Deferred taxes(123)(180)
 $413 $176 
Future postretirement health care benefit payments expected to be paid are:
2024188 
2025182 
2026191 
2027194 
2028185 
2029 - 2033660 
 $1,600 
Defined Contribution Plans: NACCO and its subsidiaries maintain a defined contribution (401(k)) plan for substantially all employees and provide employer matching contributions based on plan provisions. The plan also provides for a minimum employer contribution. Total costs, including Company contributions, for these plans were $3.6 million and $3.3 million in 2023 and 2022, respectively.