Condensed Consolidated Statement of Changes in Retained Earnings, Accumulated Other Comprehensive Loss and Noncontrolling Interests (Parenthetical) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Statement of Stockholders' Equity [Abstract]
Tax reclassification adjustment	$ 1,111	$ 468	$ 3,257	$ 2,518
Preferred stock, dividends (in dollars per share)	$ 0.5625	$ 0.5625	$ 0.5625	$ 0.5625

Amount, after reclassification adjustment, of tax (expense) benefit for (increase) decrease in accumulated other comprehensive income of defined benefit plan.

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Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
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Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
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