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SHARE-BASED COMPENSATION - Additional Information (Detail) $ in Millions |  | 12 Months Ended |
--- | --- | --- | ---
Jan. 24, 2018 shares | Dec. 31, 2018 USD ($) perfconditions shares | Dec. 31, 2017 USD ($) | Dec. 31, 2016 USD ($) | Feb. 29, 2016
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Awards outstanding to officers, directors and key employees | shares |  | 1,500,000 |  |  |
Share-based compensation |  | $ 12.3 | $ 7.9 | $ 7.3 |
Unrecognized compensation expense related to share-based compensation |  | $ 18.2 |  |  |
Remaining weighted-average period |  | 2 years 5 months 4 days |  |  |
Employee Service Share-based Compensation, Tax Benefit from Compensation Expense |  | $ 2.5 | 0.9 | 2.5 |
Restricted Stock Units (RSUs) |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Share-based compensation |  | $ 7.9 | 7.1 | 7.2 |
Award vesting period |  | 4 years |  |  |
Stock and Stock Units |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Granted (in shares) | shares |  | 370,000 |  |  |
Long Term Performance Stock Unit Awards |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Share-based compensation |  | $ 4.3 | 0.8 | (0.4) |
Stock Options |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Share-based compensation |  | $ 0.0 | $ 0.1 | $ 0.2 |
Award vesting period |  | 4 years |  |  |
Stock option year term |  | 10 years |  |  |
Furmanite |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Share conversion ratio from business combination |  |  |  |  | 0.215
2016 |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Total number of shares authorized to be issued under our stock incentive plans | shares |  | 2,000,000 |  |  |
2018 |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Total number of shares authorized to be issued under our stock incentive plans | shares |  | 450,000 |  |  |
2018 | Performance Shares |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Share-based compensation award, number of performance conditions | perfconditions |  | 2 |  |  |
2018 | Performance Shares | Minimum |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Possible payouts |  | 0.00% |  |  |
2018 | Performance Shares | Maximum |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Possible payouts |  | 200.00% |  |  |
2017 and 2018 | Long Term Performance Stock Unit Awards |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Award vesting period |  | 2 years |  |  |
Performance Period |  | 2 years |  |  |
2017 | Long Term Performance Stock Unit Awards |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Performance Period |  | 2 years |  |  |
Share-based compensation award, number of performance conditions | perfconditions |  | 3 |  |  |
2017 | Relative total shareholder return | Long Term Performance Stock Unit Awards | Minimum |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Possible payouts |  | 0.00% |  |  |
2017 | Relative total shareholder return | Long Term Performance Stock Unit Awards | Maximum |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Possible payouts |  | 200.00% |  |  |
2017 | Company's results of operations | Long Term Performance Stock Unit Awards | Minimum |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Possible payouts |  | 0.00% |  |  |
2017 | Company's results of operations | Long Term Performance Stock Unit Awards | Maximum |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Possible payouts |  | 300.00% |  |  |
Chief Executive Officer | Performance Shares |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Granted (in shares) | shares | 350,000 |  |  |  |
Vesting increment of performance units granted to CEO |  | 20.00% |  |  |
Number of stock price milestones |  | 5 |  |  |
Common Stock Settlement Period |  | 30 days |  |  |

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