PARENT COMPANY FINANCIALS ONLY (Details) - USD ($) $ in Thousands		Dec. 31, 2016		Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Assets:
Deferred tax asset		$ 49,354		$ 47,829
Derivative Asset		22,331		23,072
Total assets		7,709,375		7,209,469
Liabilities and stockholders’ equity
Junior subordinated debentures		73,107		73,306
Subordinated Debt		34,635		34,589
Derivative instruments		198,596		160,270
Other liabilities		96,958		103,370
Total liabilities		6,844,685		6,438,006
Stockholders’ equity		864,690		771,463	$ 640,527	$ 591,540
Liabilities and Equity		7,709,375		7,209,469
Consolidation, Eliminations [Member]
Assets:
Investments in subsidiaries		933,600		849,500
Parent Company [Member]
Assets:
Cash		42,596	[1]	35,428
Investments in subsidiaries	[2]	935,778		851,743
Prepaid income taxes		625		530
Deferred tax asset		216		2,229
Derivative Asset		1,364
Total assets		980,579		889,930
Liabilities and stockholders’ equity
Dividends payable		7,834		6,824
Junior subordinated debentures		73,107		73,306
Subordinated Debt		34,635		34,589
Derivative instruments	[1]			2,109
Other liabilities		313		1,639
Total liabilities		115,889		118,467
Stockholders’ equity		864,690		771,463
Liabilities and Equity		$ 980,579		$ 889,930

[1] Entire balance eliminates in consolidation.

[2] $933.6 million and $849.5 million eliminate in consolidation at December 31, 2016 and 2015, respectively.