Redeemable Noncontrolling Interests (Schedule Of Changes In The Value Of The Redeemable Noncontrolling Interests) (Details) - USD ($) $ in Thousands |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
Sep. 30, 2021 |
Sep. 30, 2020 |
Sep. 30, 2021 |
Sep. 30, 2020 |
|
| Redeemable Noncontrolling Interest [Line Items] | ||||
| Balance | $ 513,297 | |||
| Income Attributed to Noncontrolling Interests | $ (6,471) | $ (6,471) | (19,413) | $ (19,413) |
| Redemption Value Adjustment | (8,188) | (8,868) | (24,805) | (27,383) |
| Balance | 518,689 | 518,689 | ||
| Redeemable Noncontrolling Interests [Member] | ||||
| Redeemable Noncontrolling Interest [Line Items] | ||||
| Balance | 516,972 | 508,955 | 513,297 | 503,382 |
| Net | 516,972 | 508,955 | 513,297 | 503,382 |
| Income Attributed to Noncontrolling Interests | 6,471 | 6,471 | 19,413 | 19,413 |
| Distributions | (6,471) | (6,471) | (19,413) | (19,413) |
| Redemption Value Adjustment | 1,717 | 2,397 | 5,392 | 7,970 |
| Balance | 518,689 | 511,352 | 518,689 | 511,352 |
| Redeemable Noncontrolling Interests [Member] | Series A And Series A-1 Preferred Units In MCRLP [Member] | ||||
| Redeemable Noncontrolling Interest [Line Items] | ||||
| Balance | 52,324 | 52,324 | 52,324 | 52,324 |
| Net | 52,324 | 52,324 | 52,324 | 52,324 |
| Income Attributed to Noncontrolling Interests | 455 | 455 | 1,365 | 1,365 |
| Distributions | (455) | (455) | (1,365) | (1,365) |
| Balance | 52,324 | 52,324 | 52,324 | 52,324 |
| Rockpoint [Member] | Redeemable Noncontrolling Interests [Member] | ||||
| Redeemable Noncontrolling Interest [Line Items] | ||||
| Balance | 464,648 | 456,631 | 460,973 | 451,058 |
| Net | 464,648 | 456,631 | 460,973 | 451,058 |
| Income Attributed to Noncontrolling Interests | 6,016 | 6,016 | 18,048 | 18,048 |
| Distributions | (6,016) | (6,016) | (18,048) | (18,048) |
| Redemption Value Adjustment | 1,717 | 2,397 | 5,392 | 7,970 |
| Balance | $ 466,365 | $ 459,028 | $ 466,365 | $ 459,028 |