Business Combinations - Additional Information (Details) - Dutch Power $ in Millions	Mar. 04, 2019 USD ($)
Business Acquisition [Line Items]
Percentage of interests acquired	100.00%
Acquisition price	$ 53

Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
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