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Equity and Capital (Tables) | 9 Months Ended
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Sep. 30, 2018
Equity and Capital [Abstract] |
Summary of accumulated other comprehensive loss | The following tables present changes in the balances of each component of AOCI:
| Controlling Interests |  | Noncontrolling Interests |  | Total
(in thousands) | Cash Flow Hedges |  | Unrealized gain (loss) on Available-For-Sale Debt Securities |  | AOCI |  | Cash Flow Hedges |  | Unrealized gain (loss) on Available-For-Sale Debt Securities |  | AOCI |  | AOCI
Balance as of December 31, 2016 | $ | (18,327 | ) |  | (19 | ) |  | (18,346 | ) |  | (301 | ) |  | — |  |  | (301 | ) |  | (18,647 | )
Other comprehensive income before reclassifications | (3,768 | ) |  | 51 |  |  | (3,717 | ) |  | (143 | ) |  | — |  |  | (143 | ) |  | (3,860 | )
Amounts reclassified from AOCI (1) | 7,922 |  |  | — |  |  | 7,922 |  |  | 132 |  |  | — |  |  | 132 |  |  | 8,054 |
Current period other comprehensive income, net | 4,154 |  |  | 51 |  |  | 4,205 |  |  | (11 | ) |  | — |  |  | (11 | ) |  | 4,194 |
Balance as of September 30, 2017 | $ | (14,173 | ) |  | 32 |  |  | (14,141 | ) |  | (312 | ) |  | — |  |  | (312 | ) |  | (14,453 | )
(1) Amounts reclassified from AOCI into income are presented within Interest expense, net in the Consolidated Statement of Operations.
| Controlling Interests |  | Noncontrolling Interests |  | Total
(in thousands) | Cash Flow Hedges |  | Unrealized gain (loss) on Available-For-Sale Debt Securities |  | AOCI |  | Cash Flow Hedges |  | Unrealized gain (loss) on Available-For-Sale Debt Securities |  | AOCI |  | AOCI
Balance as of December 31, 2017 | $ | (6,262 | ) |  | (27 | ) |  | (6,289 | ) |  | (112 | ) |  | — |  |  | (112 | ) |  | (6,401 | )
Opening adjustment due to change in accounting policy (2) | 12 |  |  | — |  |  | 12 |  |  | 2 |  |  | — |  |  | 2 |  |  | 14 |
Adjusted balance as of January 1, 2018 | (6,250 | ) |  | (27 | ) |  | (6,277 | ) |  | (110 | ) |  | — |  |  | (110 | ) |  | (6,387 | )
Other comprehensive income before reclassifications | 15,731 |  |  | (51 | ) |  | 15,680 |  |  | 780 |  |  | — |  |  | 780 |  |  | 16,460 |
Amounts reclassified from AOCI (1) | 4,663 |  |  | — |  |  | 4,663 |  |  | 38 |  |  | — |  |  | 38 |  |  | 4,701 |
Current period other comprehensive income, net | 20,394 |  |  | (51 | ) |  | 20,343 |  |  | 818 |  |  | — |  |  | 818 |  |  | 21,161 |
Balance as of September 30, 2018 | $ | 14,144 |  |  | (78 | ) |  | 14,066 |  |  | 708 |  |  | — |  |  | 708 |  |  | 14,774 |
(1) Amounts recelassified from AOCI into income are presented within Interest expense, net in the Consolidated Statement of Operations.
(2) Upon adoption of ASU 2017-12, the Company recognized the immaterial adjustment to opening retained earnings and AOCI for previously recognized hedge ineffectiveness from off-market hedges, as further discussed in note 1.

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- Definition Equity and Capital [Abstract] + References No definition available. + Details
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- Definition Tabular disclosure of the components of accumulated other comprehensive income (loss). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14A -URI http://asc.fasb.org/extlink&oid=114867106&loc=SL7669686-108580 + Details
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