Related Parties - Components Of Service Agreement's Net Expenses (Details) - USD ($) $ in Millions	3 Months Ended
Mar. 31, 2020	Mar. 31, 2019
Related Party Transaction [Line Items]
Revenue from related parties	$ 0.7	$ 2.0
Harbinger Capital Partners \| Affiliated Entity
Related Party Transaction [Line Items]
Expenses under service agreement	0.7	1.0
Revenue from related parties	0.0	0.1
Net related party activity	0.7	0.9
Harbinger Capital Partners \| Affiliated Entity \| Corporate
Related Party Transaction [Line Items]
Expenses under service agreement	0.5	0.8
Revenue from related parties	0.0	0.1
Net related party activity	0.5	0.7
Harbinger Capital Partners \| Affiliated Entity \| Operating Segments
Related Party Transaction [Line Items]
Expenses under service agreement	0.2	0.2
Revenue from related parties	0.0	0.0
Net related party activity	0.2	0.2
Harbinger Capital Partners \| Office space \| Affiliated Entity
Related Party Transaction [Line Items]
Expenses under service agreement	0.7	0.9
Harbinger Capital Partners \| Office space \| Affiliated Entity \| Corporate
Related Party Transaction [Line Items]
Expenses under service agreement	0.5	0.7
Harbinger Capital Partners \| Office space \| Affiliated Entity \| Operating Segments
Related Party Transaction [Line Items]
Expenses under service agreement	0.2	0.2
Harbinger Capital Partners \| Administrative salaries and benefits \| Affiliated Entity
Related Party Transaction [Line Items]
Expenses under service agreement	0.0	0.1
Revenue from related parties	0.0	0.0
Harbinger Capital Partners \| Administrative salaries and benefits \| Affiliated Entity \| Corporate
Related Party Transaction [Line Items]
Expenses under service agreement	0.0	0.1
Revenue from related parties	0.0	0.0
Harbinger Capital Partners \| Administrative salaries and benefits \| Affiliated Entity \| Operating Segments
Related Party Transaction [Line Items]
Expenses under service agreement	0.0	0.0
Revenue from related parties	0.0	0.0
Harbinger Capital Partners \| Other shared overhead \| Affiliated Entity
Related Party Transaction [Line Items]
Expenses under service agreement	0.0	0.0
Revenue from related parties	0.0	0.1
Harbinger Capital Partners \| Other shared overhead \| Affiliated Entity \| Corporate
Related Party Transaction [Line Items]
Expenses under service agreement	0.0	0.0
Revenue from related parties	0.0	0.1
Harbinger Capital Partners \| Other shared overhead \| Affiliated Entity \| Operating Segments
Related Party Transaction [Line Items]
Expenses under service agreement	0.0	0.0
Revenue from related parties	$ 0.0	$ 0.0

Transactions With Related Parties, Revenues (Expenses)

No definition available.

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- Definition

Expenses recognized resulting from transactions (excluding transactions that are eliminated in consolidated or combined financial statements) with related party.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 850
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=6457730&loc=d3e39549-107864

+ Details

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Balance Type:	debit
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- Definition

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.

+ References

No definition available.

+ Details

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- Definition

Amount of revenue, fees and commissions earned from transactions between (a) a parent company and its subsidiaries; (b) subsidiaries of a common parent; (c) an entity and trusts for the benefit of employees, for example, but not limited to, pension and profit-sharing trusts that are managed by or under the trusteeship of the entity's management; (d) an entity and its principal, owners, management, or members of their immediate families; and (e) affiliates.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 946
-SubTopic 220
-Section S99
-Paragraph 1
-Subparagraph (SX 210.6-07.1(c))
-URI http://asc.fasb.org/extlink&oid=116637345&loc=SL114874292-224272

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.1(e))
-URI http://asc.fasb.org/extlink&oid=116634182&loc=SL114868664-224227

+ Details

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- Details

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- Details

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- Details

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