REGULATORY CAPITAL REQUIREMENTS (Tables)

12 Months Ended

Dec. 31, 2016

Regulatory Capital Requirements [Abstract]

Schedule of the Regulatory Capital Ratios and Minimum Regulatory Requirements

The following table shows the regulatory capital ratios of the Company and the Banks and the minimum regulatory requirements (dollars in thousands):

	Actual				Minimum for Capital Adequacy Purposes				Minimum to be Categorized as “Well-Capitalized” Under Prompt Corrective Action Provisions
	Amount		Ratio		Amount		Ratio		Amount		Ratio
December 31, 2016:
The Company—consolidated:
Total capital to risk-weighted assets	$	1,214,913	13.40	%	$	725,566	8.00	%	$	906,957	10.00	%
Tier 1 capital to risk-weighted assets	1,125,267		12.41		544,174		6.00		544,174		6.00
Tier 1 common equity to risk-weighted assets	1,014,994		11.19		408,131		4.50		n/a		n/a
Tier 1 capital to average leverage assets	1,125,267		11.83		380,519		4.00		n/a		n/a
Banner Bank:
Total capital to risk- weighted assets	1,043,837		11.76		709,882		8.00		887,352		10.00
Tier 1 capital to risk- weighted assets	956,298		10.78		532,411		6.00		709,882		8.00
Tier 1 common equity to risk-weighted assets	956,298		10.78		399,308		4.50		576,779		6.50
Tier 1 capital to average leverage assets	956,298		10.34		369,936		4.00		462,420		5.00
Islanders Bank:
Total capital to risk- weighted assets	35,207		18.43		15,281		8.00		19,101		10.00
Tier 1 capital to risk- weighted assets	33,099		17.33		11,461		6.00		15,281		8.00
Tier 1 common equity to risk-weighted assets	33,099		17.33		8,598		4.50		12,416		6.50
Tier 1 capital to average leverage assets	33,099		12.72		10,405		4.00		13,006		5.00
December 31, 2015:
The Company—consolidated:
Total capital to risk-weighted assets	$	1,139,554	13.63	%	$	668,941	8.00	%	$	836,530	10.00	%
Tier 1 capital to risk-weighted assets	1,057,597		12.65		501,706		6.00		501,918		6.00
Tier 1 common equity to risk-weighted assets	1,013,971		12.13		376,279		4.50		n/a		n/a
Tier 1 capital to average leverage assets	1,057,597		11.06		382,617		4.00		n/a		n/a
Banner Bank:
Total capital to risk- weighted assets	1,030,601		12.61		653,606		8.00		817,008		10.00	%
Tier 1 capital to risk- weighted assets	950,865		11.64		490,205		6.00		653,606		8.00
Tier 1 common equity to risk-weighted assets	950,865		11.64		367,653		4.50		531,055		6.50
Tier 1 capital to average leverage assets	950,865		10.23		371,807		4.00		464,759		5.00
Islanders Bank:
Total capital to risk- weighted assets	38,448		20.31		15,146		8.00		18,932		10.00
Tier 1 capital to risk- weighted assets	36,227		19.14		11,359		6.00		15,146		8.00
Tier 1 common equity to risk-weighted assets	36,227		19.14		8,520		4.50		12,306		6.50
Tier 1 capital to average leverage assets	36,227		13.38		10,826		4.00		13,533		5.00