INCOME TAXES - UNRECOGNIZED TAX BENEFITS (Details) - USD ($) |
3 Months Ended | 12 Months Ended | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
Mar. 31, 2017 |
Dec. 31, 2016 |
Sep. 30, 2016 |
Jun. 30, 2016 |
Mar. 31, 2016 |
Dec. 31, 2015 |
Sep. 30, 2015 |
Jun. 30, 2015 |
Mar. 31, 2015 |
Dec. 31, 2016 |
Dec. 31, 2015 |
Dec. 31, 2014 |
|
| Reconciliation of the beginning and ending amount of unrecognized tax benefits | ||||||||||||
| Balance, beginning of year | $ 1,495,000 | $ 1,800,000 | $ 1,977,000 | $ 1,800,000 | $ 1,977,000 | $ 1,381,000 | ||||||
| Additions based on tax related to the current year | 268,000 | 109,000 | 81,000 | |||||||||
| Additions for tax positions of prior years | 15,000 | 750,000 | ||||||||||
| Reductions for tax positions of prior years | (90,000) | |||||||||||
| Reductions due to the statute of limitations | (340,000) | (301,000) | (235,000) | |||||||||
| Settlements | (143,000) | |||||||||||
| Balance, end of year | $ 1,495,000 | $ 1,800,000 | 1,495,000 | 1,800,000 | 1,977,000 | |||||||
| Amount of unrecognized tax benefits that, if recognized, would favorably affect the effective income tax rate in future periods | 972,000 | 972,000 | ||||||||||
| Income tax benefit | (4,960,000) | $ (4,848,000) | $ (4,359,000) | $ (8,893,000) | (3,844,000) | $ (3,119,000) | $ (4,154,000) | $ (6,961,000) | (23,060,000) | (18,078,000) | (15,528,000) | |
| Amount of interest and penalties | ||||||||||||
| Interest and penalties recorded in the income statement | (290,000) | 19,000 | 260,000 | |||||||||
| Interest and penalties accrued | $ 557,000 | $ 847,000 | $ 557,000 | $ 847,000 | $ 827,000 | |||||||
| Forecast | ||||||||||||
| Reconciliation of the beginning and ending amount of unrecognized tax benefits | ||||||||||||
| Income tax benefit | $ 357,000 | |||||||||||