Annual report pursuant to Section 13 and 15(d)

Noncontrolling Interests In Subsidiaries (Schedule Of Activity Of Noncontrolling Interests) (Details)

v2.4.1.9
Noncontrolling Interests In Subsidiaries (Schedule Of Activity Of Noncontrolling Interests) (Details) (USD $)
In Thousands, unless otherwise specified
3 Months Ended 12 Months Ended
Dec. 31, 2014
Sep. 30, 2014
Jun. 30, 2014
Mar. 31, 2014
Dec. 31, 2013
Sep. 30, 2013
Jun. 30, 2013
Mar. 31, 2013
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Noncontrolling Interest [Line Items]                      
Balance, value       $ 1,918,455us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest       $ 2,068,507us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest $ 1,918,455us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest $ 2,068,507us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest $ 2,154,000us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
Net income (loss) (10,413)us-gaap_ProfitLoss 2,085us-gaap_ProfitLoss 57,347us-gaap_ProfitLoss (17,628)us-gaap_ProfitLoss (61,770)us-gaap_ProfitLoss 3,439us-gaap_ProfitLoss 26,184us-gaap_ProfitLoss 13,089us-gaap_ProfitLoss 31,391us-gaap_ProfitLoss (19,058)us-gaap_ProfitLoss 46,269us-gaap_ProfitLoss
Common unit distributions                 (8,456)us-gaap_MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders (16,193)us-gaap_MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders (21,908)us-gaap_MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders
Increase in noncontrolling interest in consolidated joint ventures                 552us-gaap_MinorityInterestPeriodIncreaseDecrease 1,040us-gaap_MinorityInterestPeriodIncreaseDecrease 54,835us-gaap_MinorityInterestPeriodIncreaseDecrease
Balance, value 1,882,011us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest       1,918,455us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest       1,882,011us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest 1,918,455us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest 2,068,507us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
Noncontrolling Interests In Subsidiaries [Member]                      
Noncontrolling Interest [Line Items]                      
Balance, value       276,096us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_NoncontrollingInterestMember
      301,533us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_NoncontrollingInterestMember
276,096us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_NoncontrollingInterestMember
301,533us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_NoncontrollingInterestMember
264,436us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_NoncontrollingInterestMember
Net income (loss)                 2,824us-gaap_ProfitLoss
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_NoncontrollingInterestMember
(4,149)us-gaap_ProfitLoss
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_NoncontrollingInterestMember
5,347us-gaap_ProfitLoss
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_NoncontrollingInterestMember
Common unit distributions                 (8,456)us-gaap_MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_NoncontrollingInterestMember
(16,193)us-gaap_MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_NoncontrollingInterestMember
(21,908)us-gaap_MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_NoncontrollingInterestMember
Increase in noncontrolling interest in consolidated joint ventures                 552us-gaap_MinorityInterestPeriodIncreaseDecrease
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_NoncontrollingInterestMember
1,040us-gaap_MinorityInterestPeriodIncreaseDecrease
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_NoncontrollingInterestMember
54,835us-gaap_MinorityInterestPeriodIncreaseDecrease
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_NoncontrollingInterestMember
Redemption of common units for common stock                 (14,362)us-gaap_StockIssuedDuringPeriodValueConversionOfUnits
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_NoncontrollingInterestMember
(5,478)us-gaap_StockIssuedDuringPeriodValueConversionOfUnits
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_NoncontrollingInterestMember
(1,162)us-gaap_StockIssuedDuringPeriodValueConversionOfUnits
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_NoncontrollingInterestMember
Rebalancing of ownership percentage between parent and subsidiaries                 576us-gaap_NoncontrollingInterestIncreaseFromSubsidiaryEquityIssuance
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_NoncontrollingInterestMember
(657)us-gaap_NoncontrollingInterestIncreaseFromSubsidiaryEquityIssuance
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_NoncontrollingInterestMember
(15)us-gaap_NoncontrollingInterestIncreaseFromSubsidiaryEquityIssuance
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_NoncontrollingInterestMember
Balance, value $ 257,230us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_NoncontrollingInterestMember
      $ 276,096us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_NoncontrollingInterestMember
      $ 257,230us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_NoncontrollingInterestMember
$ 276,096us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_NoncontrollingInterestMember
$ 301,533us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_NoncontrollingInterestMember