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DESCRIPTION OF BUSINESS AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES, Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands | 3 Months Ended | 12 Months Ended
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Dec. 31, 2017 | Sep. 30, 2017 | Jun. 30, 2017 | Mar. 31, 2017 | Dec. 31, 2016 | Sep. 30, 2016 | Jun. 30, 2016 | Mar. 31, 2016 | Dec. 31, 2017 | Dec. 31, 2016 | Dec. 31, 2015
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Anti-dilutive securities excluded from earnings per share calculation (in shares) |  |  |  |  |  |  |  |  |  |  |  | 0 | 0 | 0
Numerator [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net (loss) earnings | $ (20,787) | [1] | $ 5,024 | $ 3,120 | $ 746 | $ 3,377 | $ 9,710 | $ 22,776 | [2] | $ (100,696) | [2] | $ (11,897) | $ (64,834) | $ 19,197
Undistributed (loss) earnings |  |  |  |  |  |  |  |  |  |  |  | (15,176) | (68,084) | 15,962
Class A [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Numerator [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net (loss) earnings |  |  |  |  |  |  |  |  |  |  |  | (2,113) | (11,408) | 3,331
Less dividends declared |  |  |  |  |  |  |  |  |  |  |  | 522 | 522 | 522
Undistributed (loss) earnings |  |  |  |  |  |  |  |  |  |  |  | $ (2,635) | $ (11,930) | $ 2,809
Weighted average shares outstanding [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Weighted average shares outstanding (in shares) |  |  |  |  |  |  |  |  |  |  |  | 2,175 | 2,175 | 2,175
Net (loss) earnings per share [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Common share - basic and diluted (in dollars per share) | $ (1.66) |  | $ 0.40 | $ 0.24 | $ 0.05 | $ 0.27 | $ 0.78 | $ 1.83 |  | $ (8.15) |  | $ (0.97) | $ (5.25) | $ 1.53
Class B [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Dividend rate Class B common stock in excess of dividend rate of Class A common stock |  |  |  |  |  |  |  |  |  |  |  | 5.00% | 5.00% | 5.00%
Undistributed earning allocation rate of Class B common stock in excess of Class A common stock, percentage |  |  |  |  |  |  |  |  |  |  |  | 5.00% | 5.00% | 5.00%
Numerator [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net (loss) earnings |  |  |  |  |  |  |  |  |  |  |  | $ (9,784) | $ (53,426) | $ 15,866
Less dividends declared |  |  |  |  |  |  |  |  |  |  |  | 2,757 | 2,728 | 2,713
Undistributed (loss) earnings |  |  |  |  |  |  |  |  |  |  |  | $ (12,541) | $ (56,154) | $ 13,153
Weighted average shares outstanding [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Weighted average shares outstanding (in shares) |  |  |  |  |  |  |  |  |  |  |  | 9,857 | 9,749 | 9,698
Net (loss) earnings per share [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Common share - basic and diluted (in dollars per share) | $ (1.74) |  | $ 0.42 | $ 0.26 | $ 0.06 | $ 0.29 | $ 0.82 | $ 1.93 |  | $ (8.55) |  | $ (0.99) | $ (5.48) | $ 1.64
[1] | The provision for income taxes in the fourth quarter of 2017 included an $18 million impact from the U.S. Tax Cuts and Jobs Act which was enacted on December 22, 2017. This consisted of an estimated transition tax on foreign earnings of approximately $16 million after the utilization of foreign tax credits and $2 million related to the revaluation of the Company's deferred tax assets.
[2] | In connection with an interim impairment test related to the Company's goodwill and other intangible assets, provisional non-cash impairment charges totaling $104.3 million were recorded during the first quarter of 2016. During the second quarter of 2016, the Company finalized its interim impairment test, which resulted in a $2.6 million reduction to the provisional impairment charge recorded during the first quarter.

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