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Non-Controlling Interests and Equity (Details) - USD ($)	3 Months Ended
	Mar. 31, 2020	Dec. 31, 2019	Dec. 31, 2018	Jun. 30, 2018	Jun. 30, 2017	Sep. 30, 2015
Variable Interest Entity [Line Items]
Term of extension of call option		6 months	6 months	6 months	6 months	6 months
Term of extension of put option		6 months	6 months	6 months	1 year	1 year
Percentage of investor contributed capital balance, percentage	7.00%
Remaining investor contributed capital balance	5.00%
Redeemable non-controlling interests	$ 31,939,000	$ 31,616,000
Minimum
Variable Interest Entity [Line Items]
Exercise price of put options	659
Maximum
Variable Interest Entity [Line Items]
Exercise price of put options	$ 917

X

- Definition

Variable Interest Entity, Aggregate Exercise Price Of Put Options

+ References

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- Definition

Variable Interest Entity, Investor Contributed Capital Balance, Percentage

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- Definition

Variable Interest Entity, Remaining Investor Contributed Capital Balance, Percentage

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- Definition

Variable Interest Entity, Term of Extension of Call Option

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- Definition

Variable Interest Entity, Term of Extension of Put Option

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- Definition

As of the reporting date, the aggregate carrying amount of all noncontrolling interests which are redeemable by the (parent) entity (1) at a fixed or determinable price on a fixed or determinable date, (2) at the option of the holder of the noncontrolling interest, or (3) upon occurrence of an event that is not solely within the control of the (parent) entity. This item includes noncontrolling interest holder's ownership (or holders' ownership) regardless of the type of equity interest (common, preferred, other) including all potential organizational (legal) forms of the investee entity.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 480
-SubTopic 10
-Section S99
-Paragraph 3A
-Subparagraph (16)(c)
-URI http://asc.fasb.org/extlink&oid=65877616&loc=SL6540498-122764

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 480
-SubTopic 10
-Section S99
-Paragraph 3A
-Subparagraph 15
-URI http://asc.fasb.org/extlink&oid=65877616&loc=SL6540498-122764

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 480
-SubTopic 10
-Section S99
-Paragraph 3A
-Subparagraph (12)(c)
-URI http://asc.fasb.org/extlink&oid=65877616&loc=SL6540498-122764

Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 480
-SubTopic 10
-Section S99
-Paragraph 3A
-Subparagraph 14
-URI http://asc.fasb.org/extlink&oid=65877616&loc=SL6540498-122764

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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