PARENT COMPANY FINANCIAL DATA Condensed Statements of Operations (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Income:
Dividends from subsidiaries	$ 134,548	$ 79,090	$ 48,092
Expense:
Interest expense	13,980	8,653	6,804
Other expenses	12,087	8,322	5,914
Income (loss) before income taxes	27,118	7,887	(2,428)
Income tax benefit	(5,413)	(2,014)	3,216
Net income	21,705	5,873	788
Dividends on preferred stock	1,269	0	0
Net income attributable to non-controlling interests	2,466	3,601	1,935
Net income (loss) available to common shareholders	17,970	2,272	(1,147)
Parent Company
Income:
Dividends from subsidiaries	8,058	0	0
Other income	54	0	0
Total income	8,112	0	0
Expense:
Interest expense	2,331	0	0
Other expenses	837	1,247	3,939
Total expenses	3,168	1,247	3,939
Income (loss) before income taxes	4,944	(1,247)	(3,939)
Income tax benefit	5,647	0	0
Income (loss) before equity in undistributed earnings of subsidiaries	10,591	(1,247)	(3,939)
Equity in undistributed earnings of subsidiaries	11,114	7,120	4,727
Net income	21,705	5,873	788
Dividends on preferred stock	1,269	0	0
Net income attributable to non-controlling interests	2,466	3,470	1,935
Net income (loss) available to common shareholders	$ 17,970	$ 2,403	$ (1,147)