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SUMMARY OF SIGNIFICANT EVENTS AND ACCOUNTING POLICIES - 401 (k) Plan (Details) - USD ($) $ in Millions	4 Months Ended	8 Months Ended	9 Months Ended	12 Months Ended
	Dec. 31, 2016	Sep. 09, 2016	Sep. 30, 2016	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2015
401(k) Plan
Eligibility age for employees to participate in the plan				18 years
Company's matching contributions	$ 0.8	$ 2.0		$ 1.5	$ 2.2
Company's matching contributions dollar-for-dollar on employee's pre-tax earnings (as a percent)	10.00%		10.00%	10.00%		10.00%

X

- Definition

The minimum eligibility age for employees to participate in the defined contribution plan.

+ References

No definition available.

+ Details

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X

- References

No definition available.

+ Details

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X

- Definition

Amount of cost for defined contribution plan.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 70
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=49170846&loc=d3e28014-114942

+ Details

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X

- Definition

Percentage of employees' gross pay for which the employer contributes a matching contribution to a defined contribution plan.

+ References

No definition available.

+ Details

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