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Stock-Based Compensation - Summary of Assumptions Used to Determine Fair Value of Performance Based Restricted Stock Units (Detail) - Performance-Based Restricted Stock Units [Member] - Senior Executives [Member] - $ / shares | Jul. 18, 2019 | Aug. 02, 2018
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Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Closing price of our common stock |  | $ 18.49 | $ 24.35
Expected volatility of our common stock |  | 30.00% | 33.50%
Expected volatility of peer companies | [1],[2] |  | 16.00%
Risk-free interest rate |  | 1.73% | 2.74%
Dividend yield |  | 2.10% | 1.35%
Correlation coefficient of peer companies | [1],[2] |  | 0.47%
Minimum [Member] |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Expected volatility of peer companies | [1],[2] | 29.90% |
Correlation coefficient of peer companies | [1],[2] | 0.00% |
Maximum [Member] |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Expected volatility of peer companies | [1],[2] | 82.30% |
Correlation coefficient of peer companies | [1],[2] | 0.43% |
[1] | The expected volatility and correlation coefficient of our peer companies for the August 2, 2018 grant date were based on the Russell 2000 Index, which was approved by the Compensation Committee of our board of directors as the benchmark for determining the market-based total shareholder return component. Since the Russell 2000 Index was the only benchmark for determining the market-based total shareholder return component, no ranges were disclosed for these assumptions.
[2] | The expected volatility and correlation coefficient of our peer companies for the July 18, 2019 grant date were based on peer companies that were approved by the Compensation Committee of our board of directors as an aggregate benchmark for determining the market-based total shareholder return component. Therefore, we disclosed ranges of the expected volatility and correlation coefficient for the companies that represented this peer group.

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- Definition The correlation coefficient of peer companies used in fair value measurement of share-based awards. + References No definition available. + Details
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- Definition The estimated measure of the percentage by which share prices of peer companies are expected to fluctuate during a period. Volatility also may be defined as a probability-weighted measure of the dispersion of returns about the mean. The volatility of a share price is the standard deviation of the continuously compounded rates of return on the share over a specified period. That is the same as the standard deviation of the differences in the natural logarithms of the stock prices plus dividends, if any, over the period. + References No definition available. + Details
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- Definition The estimated dividend rate (a percentage of the share price) to be paid (expected dividends) to holders of the underlying shares over the option's term. + 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 (f)(2)(iii) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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- Definition The estimated measure of the percentage by which a share price is expected to fluctuate during a period. Volatility also may be defined as a probability-weighted measure of the dispersion of returns about the mean. The volatility of a share price is the standard deviation of the continuously compounded rates of return on the share over a specified period. That is the same as the standard deviation of the differences in the natural logarithms of the stock prices plus dividends, if any, over 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 (f)(2)(ii) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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- Definition The risk-free interest rate assumption that is used in valuing an option on its own shares. + 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 (f)(2)(iv) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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