Redeemable Noncontrolling Interests (Schedule Of Changes In The Value Of The Redeemable Noncontrolling Interests) (Details) - USD ($) $ in Thousands |
12 Months Ended |
Dec. 31, 2018 |
Dec. 31, 2017 |
| Redeemable Noncontrolling Interest [Line Items] |
|
|
| Balance January 1, 2018 |
$ 212,208
|
|
| Income Attributed to Noncontrolling Interests |
(13,979)
|
$ (8,840)
|
| Redemption Value Adjustment |
(26,700)
|
(28,865)
|
| Redeemable noncontrolling interests as of December 31, 2018 |
330,459
|
212,208
|
| Redeemable Noncontrolling Interests [Member] |
|
|
| Redeemable Noncontrolling Interest [Line Items] |
|
|
| Balance January 1, 2018 |
212,208
|
|
| Redeemable Noncontrolling Interests Issued |
105,000
|
|
| Net |
317,208
|
|
| Income Attributed to Noncontrolling Interests |
13,979
|
|
| Distributions |
(13,979)
|
|
| Redemption Value Adjustment |
13,251
|
|
| Redeemable noncontrolling interests as of December 31, 2018 |
330,459
|
212,208
|
| Redeemable Noncontrolling Interests [Member] | Series A And Series A-1 Preferred Units [Member] |
|
|
| Redeemable Noncontrolling Interest [Line Items] |
|
|
| Balance January 1, 2018 |
52,324
|
|
| Net |
52,324
|
|
| Income Attributed to Noncontrolling Interests |
1,820
|
|
| Distributions |
(1,820)
|
|
| Redeemable noncontrolling interests as of December 31, 2018 |
52,324
|
52,324
|
| Redeemable Noncontrolling Interests [Member] | Rockpoint [Member] |
|
|
| Redeemable Noncontrolling Interest [Line Items] |
|
|
| Balance January 1, 2018 |
159,884
|
|
| Redeemable Noncontrolling Interests Issued |
105,000
|
|
| Net |
264,884
|
|
| Income Attributed to Noncontrolling Interests |
12,159
|
|
| Distributions |
(12,159)
|
|
| Redemption Value Adjustment |
13,251
|
|
| Redeemable noncontrolling interests as of December 31, 2018 |
$ 278,135
|
$ 159,884
|