Increase decrease in retained earnings.

No definition available.

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- Definition

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

+ References

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 number of new shares issued in the conversion of stock in a noncash (or part noncash) transaction. Noncash is defined as transactions during a period that do not result in cash receipts or cash payments in the period. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 50
-Paragraph 5
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-Section 50
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-Topic 230
-SubTopic 10
-Section 50
-Paragraph 3
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- Definition

Net Increase or Decrease in balance of noncontrolling interest in the subsidiary during the reporting period.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 810
-SubTopic 10
-Section 45
-Paragraph 16
-URI http://asc.fasb.org/extlink&oid=108774443&loc=SL4568740-111683

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Changes in Shareholders' Equity (Narrative) (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended						9 Months Ended		12 Months Ended
	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Sep. 30, 2019	Sep. 30, 2018	Dec. 31, 2018
Dividends declared per share	$ 0.18			$ 0.17			$ 0.54	$ 0.51
Common Class B [Member]
Dividends declared per share	0.18	$ 0.18	$ 0.18	0.17	$ 0.17	$ 0.17
Common Class A [Member]
Dividends declared per share	$ 0.18	$ 0.18	$ 0.18	$ 0.17	$ 0.17	$ 0.17
Standish Family Holdings, LLC [Member] \| Common Class B [Member]
Conversion of stock	1.6
ASC 606 [Member]
Increase decrease in retained earnings									$ 5.6
Increase decrease in non controlling interest									0.3
ASU 2016-16 [Member]
Increase decrease in retained earnings									$ 0.5
ASC 842 [Member]
Increase decrease in retained earnings			$ 0.1