Shareholders' Equity - Distribution (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Equity [Abstract]
Annual Per Share Distribution (in dollars per share)	$ 2.20	$ 6.88	$ 6.88
Total Distribution	$ 105,868	$ 170,566	$ 145,209
Characterization of Distribution, Return of Capital	0.00%	68.60%	49.35%
Characterization of Distribution, Ordinary Income	100.00%	31.40%	50.65%
Characterization of Distribution, Quality Dividend	0.00%	0.00%	0.00%

Represents the percentage of ordinary income distributed as dividend on common stock.

No definition available.

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- Definition

Represents the percentage of qualified dividend distributed on common stock.

+ References

No definition available.

+ Details

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- Definition

Common Stock Dividends Return Of Capital Distribution Percentage

+ References

No definition available.

+ Details

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- Definition

Aggregate dividends paid 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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- References

No definition available.

+ Details

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- Definition

Amount of cash outflow in the form of ordinary dividends to common shareholders of the parent entity.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 15
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3291-108585

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