Regulatory Capital (Tables)

3 Months Ended

Mar. 31, 2016

Banking and Thrift [Abstract]

Schedule of compliance with regulatory capital requirements under banking regulations

The following capital amounts and ratios are based upon the Bank's assets.

	Actual				"Well Capitalized" Regulatory Requirements
	Amount		Ratio		Amount			Ratio
As of March 31, 2016:
Common Equity Tier 1 Capital (to Risk-Weighted Assets)	$	1,800,069	13.4	%	$	871,494	>	6.5	%
Tier 1 Capital (to Risk-Weighted Assets)	$	1,800,069	13.4	%	$	1,072,608	>	8.0	%
Total Capital (to Risk-Weighted Assets)	$	1,926,465	14.4	%	$	1,340,761	>	10.0	%
Tier 1 Capital (to Average Assets)	$	1,800,069	11.9	%	$	758,944	>	5.0	%
As of December 31, 2015:
Common Equity Tier 1 Capital (to Risk-Weighted Assets)	$	1,734,315	14.4	%	$	781,638	>	6.5	%
Tier 1 Capital (to Risk-Weighted Assets)	$	1,734,315	14.4	%	$	962,017	>	8.0	%
Total Capital (to Risk-Weighted Assets)	$	1,848,528	15.4	%	$	1,202,521	>	10.0	%
Tier 1 Capital (to Average Assets)	$	1,734,315	12.3	%	$	704,979	>	5.0	%