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Share-Based Compensation - Additional Information (Detail) - USD ($) $ / shares in Units, $ in Thousands | 9 Months Ended | 12 Months Ended
--- | --- | ---
Sep. 30, 2019 | Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Maximum number of shares authorized to issued as options (in shares) |  | 3,600,000 |  |
Share-based compensation expense |  | $ (2,822) | $ (2,416) | $ (5,496)
Tax benefit for share-based compensation cost |  | $ 100 | 700 | $ 1,600
Unrecognized compensation costs related to unvested awards |  |  | $ 2,700 |
Unrecognized compensation costs, period for recognition |  | 2 years 1 month 6 days |  |
Term life of options |  | 10 years |  |
Stock awards granted vesting period |  |  | 3 years | 3 years
Number of options granted | 210,400 | 210,000 | 57,800 | 125,700
Weighted average grant date fair value of the options granted | $ 2.77 |  | $ 10.60 | $ 11.84
Cash proceeds from the exercise of options |  | $ 100 | $ 300 | $ 3,100
Tax benefit recognized from stock option exercises |  | 100 | 100 | 200
Total intrinsic value of options exercised |  | $ 7 | $ 500 | 3,800
Selling, General and Administrative Expense |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Share-based compensation expense |  |  |  | $ (1,000)
Restricted Stock |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Stock awards granted vesting period |  | 3 years |  |
Stock units issued (in shares) |  | 339,498 | 86,516 | 85,393
Fair value assumptions, exercise price (in dollars per share) |  | $ 7.74 | $ 24.55 | $ 24.29
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Fair Value |  | $ 2,900 | $ 1,800 | $ 2,100
TSR Awards |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Stock units issued (in shares) | 136,000 |  |  |
Percentage of shares issuable based on threshold performance |  | 50.00% |  |
Percentage of shares issuable based on target performance |  | 100.00% |  |
Percentage of shares issuable based on maximum performance |  | 150.00% |  |
Threshold performance, percentage |  | 35.00% | 35.00% | 35.00%
ROIC Awards |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Share-based compensation expense |  |  | $ 800 |
Decrease in share-based compensation expense from change in vesting |  | $ 1,100 | $ 1,200 |
Stock units issued (in shares) | 174,000 |  |  |
Percentage of shares issuable based on threshold performance |  | 35.00% |  |
Percentage of shares issuable based on target performance |  | 100.00% |  |
Percentage of shares issuable based on maximum performance |  | 150.00% |  |
Threshold performance, percentage |  | 4.70% | 15.50% | 15.00%
Options awards vested |  | 0 |  |
Officers and Key Employees | Restricted Stock |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Stock awards granted vesting period |  | 3 years |  |
Non-executive Directors | Restricted Stock |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Stock awards granted vesting period |  | 1 year | 1 year | 1 year
Restatement Adjustment | ROIC Awards |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Dividends accrued for performance share units |  | $ (100) |  |

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- Definition Period over which grantee's right to exercise award under share-based payment arrangement is no longer contingent on satisfaction of service or performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Includes, but is not limited to, combination of market, performance or service condition. + 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 (a)(1) -URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901 + Details
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- Definition The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan). + 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 (c)(2)(iii)(1) -URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901 + Details
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- Definition Fair value of share-based awards for which the grantee gained the right by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash. + 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)(2) -URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901 + Details
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- Definition Net number of share options (or share units) granted during the period. + 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 (c)(1)(iv)(1) -URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901 + Details
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