Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended																12 Months Ended
	Dec. 31, 2016	[1]	Sep. 30, 2016	[1]	Jun. 30, 2016	[1]	Mar. 31, 2016	[1]	Dec. 31, 2015	[1]	Sep. 30, 2015	[1]	Jun. 30, 2015	[1]	Mar. 31, 2015	[1]	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Net income attributable to the Company	$ 17,552		$ 19,636		$ 16,398		$ 18,041		$ 15,002		$ 13,530		$ 17,610		$ 18,783		$ 71,628	$ 64,925	$ 68,815
Other comprehensive income/ (loss), net of tax:
Unrealized gain/ (loss) on securities available-for-sale																	(11,358)	(1,349)	3,736
Reclassification adjustment for net realized (gain)/ loss included in net income																	(331)	(139)	4
Net unrealized gain/ (loss) on securities available-for-sale																	(11,689)	(1,488)	3,740
Unrealized gain/ (loss) on cash flow hedges																	(461)	(1,554)	(2,009)
Reclassification adjustment for net realized (gain)/ loss included in net income																	979	2,354	1,849
Net unrealized gain/ (loss) on cash flow hedges																	518	800	(160)
Net unrealized gain/ (loss) on other																	123	(115)	(80)
Other comprehensive income/ (loss), net of tax																	(11,048)	(803)	3,500
Total comprehensive income attributable to the Company, net																	$ 60,580	$ 64,122	$ 72,315

[1] Due to rounding, the sum of the four quarters may not add to the year to date total.