Aggregate dividends declared during the period for each share of common stock outstanding.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.3-04)
-URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770

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- Definition

The cash inflow associated with the amount received from the sale of a portion of the company's business, for example a segment, division, branch or other business, during the period.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 12
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3179-108585

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- Definition

Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event.

+ References

No definition available.

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Subsequent Events - Dividend Declaration (Details) - USD ($) $ / shares in Units, $ in Millions					1 Months Ended	3 Months Ended		6 Months Ended
	Aug. 07, 2018	Jul. 17, 2018	Feb. 26, 2018	May 08, 2017	Mar. 31, 2018	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Subsequent Event [Line Items]
Dividends declared per common share outstanding (in dollars per share)			$ 0.20	$ 0.25		$ 0.25	$ 0.15	$ 0.45	$ 0.30
Proceeds from sale of business								$ 110.8	$ 0.0
Subsequent event
Subsequent Event [Line Items]
Dividends declared per common share outstanding (in dollars per share)	$ 0.25
California Discontinued Entities
Subsequent Event [Line Items]
Proceeds from sale of business					$ 54.6
California Discontinued Entities \| Subsequent event
Subsequent Event [Line Items]
Proceeds from sale of business		$ 14.9