Subordinated Debentures (Tables)

12 Months Ended

Dec. 31, 2018

Debt Instruments [Abstract]

Summary of Subordinated Debentures

The Company’s subordinated debentures are reflected in the table below. The amounts include fair value adjustments from acquisitions.

	December 31, 2018				Rate Structure	Maturity Date
(Dollars in thousands)	Balance		Rate
Subordinated debentures owed to trust subsidiaries
First Company Statutory Trust 2001	$	3,332	5.827	%	3 month LIBOR plus 3.30%	07/31/2031
First Company Statutory Trust 2003	2,452		6.072	%	3 month LIBOR plus 3.25%	03/26/2033
Glacier Capital Trust II	46,393		5.186	%	3 month LIBOR plus 2.75%	04/07/2034
Citizens (ID) Statutory Trust I	5,155		5.438	%	3 month LIBOR plus 2.65%	06/17/2034
Glacier Capital Trust III	36,083		3.726	%	3 month LIBOR plus 1.29%	04/07/2036
Glacier Capital Trust IV	30,928		4.358	%	3 month LIBOR plus 1.57%	09/15/2036
Bank of the San Juans Bancorporation Trust I	1,935		4.558	%	3 month LIBOR plus 1.82%	03/01/2037
Total subordinated debentures owed to trust subsidiaries	126,278
Tier 2 subordinated debentures	7,773		6.625	%	Fixed	10/01/2025
Total subordinated debentures	$	134,051