Condensed Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Income Statement [Abstract]
NET INCOME ATTRIBUTABLE TO COMPANY'S COMMON STOCKHOLDERS	$ 24,620	$ 20,043	$ 51,689	$ 44,979
OTHER COMPREHENSIVE INCOME
Increase in fair value of available for sale securities	4,560	1,469	11,946	13,045
Reclassification adjustment for net gain included in net income	(3,538)	0	(4,298)	0
(Decrease) increase in in fair value of derivative instruments utilized for cash flow hedges	(176)	521	(84)	(607)
OTHER COMPREHENSIVE INCOME	846	1,990	7,564	12,438
COMPREHENSIVE INCOME ATTRIBUTABLE TO COMPANY'S COMMON STOCKHOLDERS	$ 25,466	$ 22,033	$ 59,253	$ 57,417

Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income, attributable to parent entity. Excludes changes in equity resulting from investments by owners and distributions to owners.

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Amount, after deduction of tax, noncontrolling interests, dividends on preferred stock and participating securities; of income (loss) available to common shareholders.

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Amount after tax and reclassification adjustments, of increase (decrease) in accumulated gain (loss) from derivative instruments designated and qualifying as the effective portion of cash flow hedges and an entity's share of an equity investee's increase (decrease) in deferred hedging gain (loss).

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Amount after tax and reclassification adjustments of other comprehensive income (loss).

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Amount after tax of reclassification adjustment from accumulated other comprehensive income for unrealized gain (loss) realized upon the sale of available-for-sale securities.

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Amount after tax, before reclassification adjustments, of unrealized holding gain (loss) on available-for-sale securities.

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