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Share-Based Compensation (Tables) | 12 Months Ended
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Dec. 31, 2020
Share-based Payment Arrangement [Abstract] |
Schedule of Stock-based Compensation Expense | The components of the Company’s shared-based compensation expense for the years ended December 31, 2020, 2019 and 2018 are as follows:
| Year Ended December 31,
| 2020 |  | 2019 |  | 2018
| (in thousands)
Stock options | $ | 2,134 |  |  | $ | 2,623 |  |  | $ | 2,989 |
Restricted stock and restricted stock units | 5,195 |  |  | 3,967 |  |  | 2,591 |
Employee Stock Purchase Plan | 543 |  |  | 275 |  |  | 320 |
Total pre-tax share-based compensation expense charged against income 1 | $ | 7,872 |  |  | $ | 6,865 |  |  | $ | 5,900 |
Total recognized tax (deficiency) benefit related to share-based compensation | $ | (293) |  |  | $ | 196 |  |  | $ | 1,480 |
1.Share-based compensation expense is recorded in cost of services and selling, general and administrative expense in the Company’s Consolidated Statements of Comprehensive Income.
Summary of Other Information of Stock Option Plans | A summary of stock options outstanding under the 2020 Plan and the 2012 Plan as of December 31, 2020 and changes during 2020 are as follows:
| Stock Options Outstanding
| Number of Shares |  | Weighted Average Exercise Price
| (in thousands) |  |
December 31, 2019 | 2,107 |  |  | $ | 32.99 |
Granted | 215 |  |  | $ | 24.49 |
Exercised | (164) |  |  | $ | 17.12 |
Forfeited | (12) |  |  | $ | 37.65 |
Expired | (48) |  |  | $ | 32.12 |
December 31, 2020 | 2,098 |  |  | $ | 33.35 |
Schedule of Assumption For Fair Value of Options Granted | The fair value of stock option awards granted in 2020, 2019 and 2018 were estimated on the dates of grant using the Black-Scholes option valuation model with the following assumptions:
| Year Ended December 31,
| 2020 |  | 2019 |  | 2018
Risk-free interest rate | 1.8 | % |  | 2.5 | % |  | 2.1 | %
Weighted average expected life | 6.6 years |  | 5.7 years |  | 5.8 years
Expected volatility | 26.5 | % |  | 22.6 | % |  | 21.5 | %
Dividend yield | 3.2 | % |  | 1.9 | % |  | 1.5 | %
Summarized Information of Stock Options Outstanding | The following table summarizes other information about the stock options at December 31, 2020:
| December 31, 2020
| (amounts in thousands, except per share data)
Outstanding: |
Aggregate intrinsic value | $ | 2,720 |
Weighted average remaining contractual life | 5.3 years
Exercisable: |
Number of options | 1,375 |
Weighted average exercise price | $ | 31.78 |
Aggregate intrinsic value | $ | 1,944 |
Weighted average remaining contractual life | 4.2 years
Summary of Outstanding Restricted Stock Units and Restricted Stock | A summary of the outstanding restricted stock units and restricted stock as of December 31, 2019 and changes during the year ended December 31, 2020 is as follows:
| Restricted Stock Units and Restricted Stock
| Number |  | Weighted Average Grant Date Fair Value
| (in thousands) |  |
December 31, 2019 | 362 |  |  | $ | 43.24 |
Granted | 309 |  |  | $ | 24.43 |
Vested | (94) |  |  | $ | 42.40 |
Forfeited | (16) |  |  | $ | 32.54 |
December 31, 2020 | 561 |  |  | $ | 33.31 |
Weighted Average Grant-Date Fair Values and Intrinsic Values of Options Vested | The weighted average grant-date fair values and total fair values of restricted stock units and restricted stock vested during 2020, 2019 and 2018 were as follows:
|  | Year Ended December 31,
|  | 2020 |  | 2019 |  | 2018
|  | (in thousands, except per share data)
Weighted average grant-date fair value of restricted stock units granted |  | $ | 24.43 |  |  | $ | 40.49 |  |  | $ | 52.06 |
Total fair value of restricted stock units and restricted shares vested |  | $ | 2,287 |  |  | $ | 2,399 |  |  | $ | 1,822 |
Summary of ESPP Annual Offerings | The following table summarizes information about the Company's ESPP annual offerings for the years ended December 31, 2020, 2019 and 2018:
| Year Ended December 31,
| 2020 |  | 2019 |  | 2018
| (in thousands, except per share data)
Common shares purchased | 73 |  |  | 75 |  |  | 53 |
Per common share purchase price | $ | 20.67 |  |  | $ | 20.67 |  |  | $ | 34.15 |
Summary of Information Of SERP | The following table summarizes information about the SERP during the plan years ended December 31, 2020, 2019 and 2018:
| Year Ended December 31,
| 2020 |  | 2019 |  | 2018
| (in thousands)
SERP expense 1 | $ | 512 |  |  | $ | 539 |  |  | $ | 547 |
Treasury shares issued to fund SERP expense 2 | 18 |  |  | 22 |  |  | 14 |
Year end SERP trust account balance 3 | $ | 54,729 |  |  | $ | 43,952 |  |  | $ | 39,766 |
Unrealized gain (loss) recorded in SERP liability account | $ | 9,200 |  |  | $ | 7,353 |  |  | $ | (1,469) |
1.Both the SERP match and the deferrals are included in the selling, general and administrative caption in the Consolidated Statements of Comprehensive Income. 2.Shares related to the SERP match for each year are funded at the beginning of the subsequent year. 3.SERP trust account investments are recorded at their fair value which is based on quoted market prices. Differences between such amounts in the table above and the deferred compensation funding asset reported on the Consolidated Balance Sheets represent the value of Company Common Stock held in the Plan participants' trust accounts and reported by the Company as treasury stock in the Consolidated Balance Sheets.

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- Definition Tabular disclosure of an equity-based arrangement (such as stock or unit options and stock or unit awards) with an individual employee, which is generally an employment contract between the entity and a selected officer or key employee containing a promise by the employer to pay certain equity-based awards at future dates, sometimes including a period after retirement, upon compliance with stipulated requirements. This type of arrangement is distinguished from broader based employee benefit plans as it is usually tailored to the employee. Disclosure also typically includes the amount of related compensation expense recognized during the reporting period, the number of shares or units issued during the period under such arrangements, and the carrying amount as of the balance sheet date of the related liability. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 710 -SubTopic 10 -Section 30 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6409875&loc=d3e20015-108363 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5047-113901 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 710 -SubTopic 10 -Section 55 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=6409961&loc=d3e20517-108367 + Details
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- Definition Tabular disclosure of allocation of amount expensed and capitalized for award under share-based payment arrangement to statement of income or comprehensive income and statement of financial position. Includes, but is not limited to, corresponding line item in financial statement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(1) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB Topic 14.F) -URI http://asc.fasb.org/extlink&oid=115993241&loc=d3e301413-122809 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5047-113901 + Details
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- Definition Tabular disclosure of option exercise prices, by grouped ranges, including the upper and lower limits of the price range, the number of shares under option, weighted average exercise price and remaining contractual option terms. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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- Definition Tabular disclosure for stock option plans. Includes, but is not limited to, outstanding awards at beginning and end of year, grants, exercises, forfeitures, and weighted-average grant date fair value. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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