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Equity-Based Compensation (Tables)
 12 Months Ended
Dec. 31, 2022
Share-Based Payment Arrangement, Noncash Expense [Abstract]  
Summary of Compensation Expense Connection with Awards
The Company recognized the following compensation expense in connection with awards that vested under the 2018 Plan, the 2015 Plan, the Prior Plan, and the Non-Employee Directors Plan along with the related tax benefits recognized during the years ended December 31 (in thousands):
202220212020
Expense recognized under the Prior Plan$19 $29 $40 
Expense recognized under the 2015 Plan1,617 1,186 1,932 
Expense recognized under the 2018 Plan5,928 6,597 5,441 
Expense recognized under the Non-Employee Directors Plan770 840 760 
Total stock compensation expense$8,334 $8,652 $8,173 
Tax benefits recognized related to stock compensation expense$2,175 $2,189 $2,272 
Schedule of Number of Awards and Weighted Average Grant Date Fair Value
The following table provides the number of stock units and common stock granted during the years ended December 31, along with the weighted-average grant-date fair value of each award:
 202220212020
AwardsNumber
of Awards		Weighted
Average
Grant Date
Fair Value		Number
of Awards		Weighted
Average
Grant Date
Fair Value		Number
of Awards		Weighted
Average
Grant Date
Fair Value
Deferred stock units2,460 $42.69 7,536 $83.58 12,402 $45.98 
Common stock15,652 $42.49 2,512 $83.58 4,134 $45.98 
Restricted stock units132,430 $43.92 72,243 $79.28 81,397 $56.81 
Performance stock units (1)108,464 $47.00 62,778 $87.84 160,426 $55.98 
(1) The Company’s performance stock units (“PSUs”) represent shares granted for which the final number of shares earned depends on financial performance or market conditions. The number of shares to be issued may vary between 0% and 200% of the number of PSUs granted depending on the relative achievement to targeted thresholds. The Company's PSUs with a financial performance condition are based on either the Company’s return on invested capital (“ROIC”) over a one-year period performance period or other criteria such as revenue, gross profit, and operating profit thresholds over a three-year performance period. The Company's PSUs with a market condition are based on the ranking of the Company’s total shareholder return (“TSR”) performance, on a percentile basis, over a three-year performance period compared to the S&P Small Cap Industrial sector, over the same three-year performance period.
Summary of Ranges of Outstanding and Exercisable Options The following table summarizes the Company's outstanding and exercisable options at December 31, 2022:
Exercise PriceOptions
Outstanding		Weighted
Average
Remaining
Contractual Life
(in years)		Weighted
Average
Exercise
Price		Options
Exercisable		Weighted
Average
Exercise
Price
$39.55
5,000 4.26$39.55 5,000 $39.55 
Summary of Stock Options Transactions
The following table summarizes information about stock option transactions:
OptionsWeighted
Average
Exercise
Price		Weighted
Average
Remaining Contractual
Life (in years)		Aggregate
Intrinsic Value
Balance at January 1, 2020117,409 $19.91 
Exercised(75,909)14.73 
Balance at December 31, 202041,500 $29.38 
Exercised(36,500)27.99 
Balance at December 31, 20215,000 $39.55 
Exercised— — 
Balance at December 31, 20225,000 $39.55 4.26$31,650 
Summary of Information About Restricted Stock Units and Weighted Average Grant Date Fair Value
The following table summarizes information about non-vested restricted stock units and performance stock units (that will convert to shares upon vesting) and common stock:
Restricted
Stock
Units		Weighted
Average
Grant Date
Fair Value		Common
Stock		Weighted
Average
Grant Date
Fair Value		Performance
Stock Units		Weighted
Average
Grant Date
Fair Value		Deferred
Stock
Units (2)		Weighted
Average
Grant Date
Fair Value
Balance at December 31, 2021204,584 $52.90 — $— 363,474 $55.44 52,472 $43.99 
Granted132,430 $43.92 15,652 $42.49 108,464 $47.00 2,460 $42.69 
Adjustments (1)— $— — $— (65,209)$82.75 — $— 
Vested(83,714)$45.77 (15,652)$42.49 (145,153)$41.28 (14,582)$40.53 
Forfeited(17,930)$59.62 — $— (50,208)$61.51 — $— 
Balance at December 31, 2022235,370 $49.87 — $— 211,368 $50.96 40,350 $45.16 
(1) The Company's PSU adjustments during 2022 represents (i) 55,959 shares for which the performance condition was not achieved and the PSUs were adjusted in the first quarter of 2022 to reflect zero PSU earned as the threshold level of achievement was not met based on the Company's actual ROIC achievement level for the performance period ended December 31, 2021 and (ii) 9,250 shares not earned that related to two separate PSU awards granted in 2019 and 2020 that the threshold level of achievement based on other performance criteria as defined in the respective awards over a two-year or three-year performance periods were not met for the performance periods ended December 31, 2021.
(2) Vested and issuable upon termination from service as a member of the Company's Board of Directors.
Aggregate Intrinsic Value of Options Exercised and Aggregate Fair Value of Restricted Stock Units and Restricted Shares that Vested
The following table sets forth the aggregate intrinsic value of options exercised and aggregate fair value of restricted stock units and restricted shares that vested during the years ended December 31 (in thousands):
202220212020
Aggregate intrinsic value of options exercised$— $2,103 $3,812 
Aggregate fair value of vested restricted stock units$3,920 $6,320 $11,851 
Aggregate fair value of vested common stock$665 $370 $190 
Aggregate fair value of vested performance stock units$6,729 $9,080 $4,197 
Aggregate fair value of vested deferred stock units$105 $630 $570 
Cash Paid to Settle Liability Awards
The following table provides the number of restricted stock units credited to active participant accounts, balance of vested and unvested restricted stock units within active participant accounts, payments made with respect to restricted stock units issued under the MSPP, and MSPP expense during years ended December 31:
202220212020
Restricted stock units credited12,365 30,475 57,046 
Restricted stock units balance, vested and unvested158,644 223,892 231,343 
Share-based liabilities paid (in thousands)$3,689 $4,915 $15,401 
MSPP (recovery) expense (in thousands)$(4,459)$6,034 $4,518