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v3.22.1

Capital Transactions - Narrative (Details) - USD ($) |  |  | 3 Months Ended | 12 Months Ended |  |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | ---
May 05, 2021 | Apr. 05, 2021 | Mar. 31, 2022 | Mar. 31, 2021 | Dec. 31, 2015 | Mar. 08, 2022 | Dec. 31, 2021 | Mar. 10, 2021 | Dec. 31, 2012
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |
Common stock, dividends (in dollars per share) |  | $ 1.00 |  |  |  |  |  |  |
Dividends, common stock, cash |  | $ 19,900,000 |  | $ 19,858,000 |  |  |  |  |
Stock repurchase program, authorized amount |  |  |  |  |  | $ 30,000,000 |  | $ 15,000,000 |
Repurchase of common stock (in shares) |  |  | 451,000 | 0 |  |  |  |  |
Repurchase of common stock |  |  | $ 7,971,000 |  |  |  |  |  |
Stock repurchase program, remaining authorized repurchase amount |  |  | 29,600,000 |  |  |  |  |  |
2012 Stock Incentive Plan |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |
Number of shares authorized under the plan (in shares) |  |  |  |  |  |  |  |  | 1,500,000
Additional number of shares authorized under the plan (in shares) | 2,000,000 |  |  |  | 1,500,000 |  |  |  |
Stock options |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |
Share-based compensation expense |  |  | 0 | $ 0 |  |  |  |  |
Unrecognized share-based compensation expense |  |  | $ 0 |  |  |  | $ 0 |  |
Options outstanding (in shares) |  |  | 143,000 |  |  |  | 172,000 |  |
Aggregate intrinsic value, outstanding |  |  | $ 600,000 |  |  |  | $ 1,100,000 |  |
Exercised (in shares) |  |  | 29,000 | 2,500 |  |  |  |  |
Exercised (in dollars per share) |  |  | $ 9.17 | $ 11.98 |  |  |  |  |
Aggregate intrinsic values of options exercised |  |  | $ 300,000 | $ 19,000 |  |  |  |  |
Tax benefit from the exercise of stock options |  |  | $ 100,000 | 9,000 |  |  |  |  |
Weighted-average grant date fair value (in dollars per share) |  |  | $ 0 |  |  |  |  |  |
Time-based stock options | Maximum |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |
Vesting period |  |  | 48 months |  |  |  |  |  |
Performance based stock options operating income margins |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |
Operating income margin, one (as a percent) |  |  | 6.00% |  |  |  |  |  |
Operating income margin, two (as a percent) |  |  | 8.00% |  |  |  |  |  |
Operating income margin, three (as a percent) |  |  | 10.00% |  |  |  |  |  |
Unvested stock options outstanding (in shares) |  |  | 0 |  |  |  | 0 |  |
Performance based stock options operating income margins | Minimum |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |
Award performance period |  |  | 1 year |  |  |  |  |  |
Performance based stock options operating income margins | Maximum |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |
Award performance period |  |  | 1 year 3 months |  |  |  |  |  |
RSUs |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |
Share-based compensation expense |  |  | $ 500,000 | $ 400,000 |  |  |  |  |
Unrecognized share-based compensation expense |  |  | $ 1,000,000 |  |  |  | $ 1,600,000 |  |
Discount for lack of marketability |  |  | 12.90% |  |  |  |  |  |
RSU issued (in shares) |  |  | 0 |  |  |  |  |  |
Weighted-average period over which the remaining compensation cost is expected to be recognized |  |  | 6 months |  |  |  |  |  |
Minimum withholding requirements (in shares) |  |  | 60,000 | 75,000 |  |  |  |  |
RSUs | 2012 Stock Incentive Plan |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |
Granted (in shares) |  |  | 2,000 |  |  |  |  |  |
RSUs | Minimum | 2012 Stock Incentive Plan |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |
Vesting period |  |  | 12 months |  |  |  |  |  |
RSUs | Maximum | 2012 Stock Incentive Plan |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |
Vesting period |  |  | 36 months |  |  |  |  |  |
RSUs | Director | 2012 Stock Incentive Plan |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |
Restriction period for issuance of shares |  |  | 2 years |  |  |  |  |  |
Nonvested subject to restriction period (in shares) |  |  | 95,000 |  |  |  | 88,000 |  |
Time-Based Restricted Stock Units (RSUs) | 2012 Stock Incentive Plan |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |
Weighted-average grant date fair value (in dollars per share) |  |  | $ 16.35 |  |  |  |  |  |
Performance-Based Restricted Stock Units (RSUs) |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |
Share-based compensation expense |  |  | $ 300,000 | $ 400,000 |  |  |  |  |
Performance-Based Restricted Stock Units (RSUs) | Maximum |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |
Share based compensation potential compensation expense to be recognized |  |  | $ 2,000,000 |  |  |  |  |  |

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