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STOCKHOLDERS' EQUITY - Accumulated Other Comprehensive Income (Loss) (Detail) - USD ($) $ in Thousands | 12 Months Ended |
--- | --- | ---
Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016 | Jan. 01, 2018
AOCI Attributable to Parent, Net of Tax [Roll Forward] |  |  |  |
Beginning balance | $ (37,862) | $ (24,550) | $ (21,597) |
Cumulative effect of new accounting principle |  |  |  | $ (18)
Other comprehensive income (loss) before reclassifications | (1,837) | (84) |  |
Amounts reclassified from accumulated other comprehensive income (loss) | 363 | 421 |  |
Income tax expense related to items in other comprehensive income (loss) | 0 | (85) | 0 |
Other comprehensive (loss) income, net of tax | (1,474) | 252 | (75) |
Ending balance | (15,832) | (37,862) | (24,550) |
Marketable Securities |  |  |  |
AOCI Attributable to Parent, Net of Tax [Roll Forward] |  |  |  |
Beginning balance | 18 | (68) | 7 |
Cumulative effect of new accounting principle |  |  |  | (18)
Other comprehensive income (loss) before reclassifications | 0 | 59 |  |
Amounts reclassified from accumulated other comprehensive income (loss) |  | 0 |  |
Income tax expense related to items in other comprehensive income (loss) | 0 | 27 |  |
Other comprehensive (loss) income, net of tax | 0 | 86 | (75) |
Ending balance | 0 | 18 | (68) |
Interest rate swaps |  |  |  |
AOCI Attributable to Parent, Net of Tax [Roll Forward] |  |  |  |
Beginning balance | 166 | 0 | 0 |
Cumulative effect of new accounting principle |  |  |  | 0
Other comprehensive income (loss) before reclassifications | (1,837) | (143) |  |
Amounts reclassified from accumulated other comprehensive income (loss) | 363 | 421 |  |
Income tax expense related to items in other comprehensive income (loss) | 0 | (112) |  |
Other comprehensive (loss) income, net of tax | (1,474) | 166 | 0 |
Ending balance | (1,308) | 166 | 0 |
Accumulated Other Comprehensive Income (Loss) |  |  |  |
AOCI Attributable to Parent, Net of Tax [Roll Forward] |  |  |  |
Beginning balance | 184 | (68) | 7 |
Cumulative effect of new accounting principle |  |  |  | $ (18)
Other comprehensive (loss) income, net of tax | (1,474) | 252 | (75) |
Ending balance | $ (1,308) | $ 184 | $ (68) |

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