Regulatory Capital Requirements - Components of Regulatory Capital (Detail) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
Home Savings
Compliance With Regulatory Capital Requirements Under Banking Regulations [Line Items]
Total shareholders' equity	$ 223,855	$ 217,372
Accumulated other comprehensive income	22,061	20,015
Intangible assets	(23)	(84)
Disallowed deferred tax assets	(23,300)	(17,223)
Tier 1 Capital	222,593	220,080
Allowance for loan losses and allowance for unfunded lending commitments limited to 1.25% of total risk-weighted assets	15,297	13,894
Total risk-based capital	237,890	$ 233,974
United Community
Compliance With Regulatory Capital Requirements Under Banking Regulations [Line Items]
Total shareholders' equity	236,462
Accumulated other comprehensive income	22,045
Intangible assets	(23)
Disallowed deferred tax assets	(25,493)
Tier 1 Capital	232,991
Allowance for loan losses and allowance for unfunded lending commitments limited to 1.25% of total risk-weighted assets	15,315
Total risk-based capital	$ 248,306