Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Net income attributable to the Company	$ 23,406	$ 16,398	$ 39,068	$ 34,439
Other comprehensive income/ (loss), net of tax [Abstract]
Unrealized gain/ (loss) on securities available-for-sale	4,380	6,210	6,474	15,298
Reclassification adjustment for net realized gain/ (loss) included in net income	(141)	(157)	(152)	(158)
Net unrealized gain/ (loss) on securities available-for-sale	4,239	6,053	6,322	15,140
Unrealized gain/ (loss) on cash flow hedges	(246)	(352)	(210)	(1,498)
Reclassification adjustment for net realized gain/ (loss) included in net income	206	266	386	512
Net change in unrealized gain/ (loss) on cash flow hedges	(40)	(86)	176	(986)
Net unrealized gain/ (loss) on other	0	0	12	0
Other comprehensive income/ (loss), net of tax	4,199	5,967	6,510	14,154
Total comprehensive income, attributable to the Company, net	$ 27,605	$ 22,365	$ 45,578	$ 48,593