Organization and Summary of Significant Accounting Policies (Changes in AOCI) (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2016 USD ($)
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning balance	$ 3,342,393
Ending balance	3,434,162
Gains or Loss on Cash Flow Hedges
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning balance	(25,046)	[1]
Other comprehensive income (loss)	0	[1]
Reclassifications from accumulated other comprehensive income to net earnings	695	[1],[2]
Net current period other comprehensive income (loss)	695	[1]
Ending balance	(24,351)	[1]
Gains and Losses on Commercial Mortgage Residual Interests
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning balance	4,454	[3]
Other comprehensive income (loss)	(234)	[3]
Reclassifications from accumulated other comprehensive income to net earnings	59	[3],[4]
Net current period other comprehensive income (loss)	(175)	[3]
Ending balance	4,279	[3]
Gains and Losses on Available-for-Sale Securities
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning balance	240
Other comprehensive income (loss)	174
Reclassifications from accumulated other comprehensive income to net earnings	0
Net current period other comprehensive income (loss)	174
Ending balance	414
AOCI Attributable to Parent
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning balance	(20,352)
Other comprehensive income (loss)	(60)
Reclassifications from accumulated other comprehensive income to net earnings	754
Net current period other comprehensive income (loss)	694
Ending balance	$ (19,658)

[1] Additional disclosure is included in Note 6 – Derivatives.

[2] Reclassifications out of other comprehensive income (loss) are recorded in Interest Expense on the Condensed Consolidated Statements of Income and Comprehensive Income. There is no income tax expense (benefit) resulting from this reclassification.

[3] Additional disclosure is included in Note 7 – Fair Value Measurements.

[4] Reclassifications out of other comprehensive income are recorded in Impairment on the Condensed Consolidated Statements of Income and Comprehensive Income. There is no income tax expense (benefit) resulting from this reclassification.