Fair Value Measurements - Change in Redeemable Noncontrolling Interests (Details) $ in Thousands	12 Months Ended
Dec. 31, 2018 USD ($)
Change in Redeemable Noncontrolling Interests [Roll Forward]
Balance, beginning of period	$ 151,978
Redemption of redeemable noncontrolling interest	138,835
Deconsolidation upon sale of redeemable noncontrolling interest	5,535
Net loss attributable to redeemable noncontrolling interest	(4,791)
Adjustment of the redeemable noncontrolling interest to fair value	(7,419)
Effect of foreign currency translation attributable to redeemable noncontrolling interest	(6,468)
Balance, end of period	$ 0

Temporary Equity, Deconsolidation Of Redeemable Noncontrolling Interest

No definition available.

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- Definition

Temporary Equity, Decrease from Redemption of Noncontrolling Interest

+ References

No definition available.

+ Details

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- Definition

Change in noncontrolling interest during the period as a result of a change in the redemption value of redeemable noncontrolling interest.

+ 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 15
-URI http://asc.fasb.org/extlink&oid=65877616&loc=SL6540498-122764

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-Topic 505
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-URI http://asc.fasb.org/extlink&oid=65877616&loc=SL6540498-122764

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- Definition

A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

+ References

No definition available.

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- Definition

Amount of Net Income (Loss) attributable to redeemable noncontrolling interest.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.19)
-URI http://asc.fasb.org/extlink&oid=120395209&loc=SL114868664-224227

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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
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-Topic 480
-SubTopic 10
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- Definition

Adjustments to temporary equity resulting from foreign currency translation adjustments.

+ References

No definition available.

+ Details

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