SUBSEQUENT EVENTS (Details) - USD ($)
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3 Months Ended |
12 Months Ended |
Mar. 08, 2017 |
Feb. 17, 2017 |
Feb. 14, 2017 |
Feb. 13, 2017 |
Dec. 23, 2013 |
Dec. 31, 2016 |
Dec. 31, 2016 |
Dec. 31, 2015 |
Dec. 31, 2014 |
| Dividends declared |
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| Cash dividend declared (in dollars per share) |
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$ 0.80
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$ 0.80
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$ 0.60
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| Other General and Administrative Expenses |
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| Litigation Settlement |
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| Litigation settlement amount |
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$ 7,000,000
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| Subsequent Events |
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| Additional Public Offering |
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| Repayment of Bridge Loan |
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$ 350,000,000
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| Subsequent Events | Other General and Administrative Expenses |
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| Litigation Settlement |
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| Litigation settlement amount |
$ 7,000,000
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| Class A Common Stock |
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| Additional Public Offering |
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| Number of shares issued |
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21,052,632
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| Class A Common Stock | Subsequent Events |
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| Additional Public Offering |
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| Number of shares issued |
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1,283,255
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19,047,619
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| Price per share |
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$ 31.50
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$ 31.50
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| Value of shares issued |
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$ 40,423,000
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$ 600,000,000
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| Net proceeds |
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$ 39,000,000
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579,000,000
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| Repayment of Bridge Loan |
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$ 350,000,000
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| Dividends declared |
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| Cash dividend declared (in dollars per share) |
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$ 0.20
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| Class A Common Stock | Subsequent Events | Mr. Aron |
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| Additional Public Offering |
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| Number of shares issued |
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31,747
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| Price per share |
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$ 31.50
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| Class B Common Stock | Subsequent Events |
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| Dividends declared |
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| Cash dividend declared (in dollars per share) |
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$ 0.20
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