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STOCK BASED AND OTHER COMPENSATION PLANS - Summary of Grants (Details) - $ / shares	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of Shares/Options (in shares)	1,466,337
Stock Options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock Options (in shares)	0	12,073
Class A Common Stock | Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of Shares/Options (in shares)	1,466,337	1,541,001
Weighted Average Fair Value Per Share (in dollars per share)	$ 18.72	$ 17.56
Class A Common Stock | Dividend Declared
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of Shares/Options (in shares)	0	11,113
Weighted Average Fair Value Per Share (in dollars per share)	$ 0	$ 16.61

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- Definition

Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Grants In Period Weighted Average Fair Value per share

+ References

No definition available.

+ Details

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- Definition

The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

+ 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 (c)(2)(iii)(1)
-URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901

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- Definition

Gross number of share options (or share units) granted during the period.

+ References

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