Common Stock	3 Months Ended
Mar. 31, 2020
Equity [Abstract]
Common Stock	Common Stock In November of 2019, United’s Board of Directors authorized an expansion of the existing common stock repurchase plan to authorize the repurchase of its common stock up to $50 million. The program is scheduled to expire on the earlier of United’s repurchase of its common stock having an aggregate purchase price of $50 million or December 31, 2020. Under the program, shares may be repurchased in the open market or in privately negotiated transactions, from time to time, subject to market conditions. During the three months ended March 31, 2020 and 2019, 826,482 and 305,052 shares, respectively, were repurchased under the program. As of March 31, 2020, United had remaining authorization to repurchase up to $29.2 million of outstanding common stock under the program.

The entire disclosure for shareholders' equity comprised of portions attributable to the parent entity and noncontrolling interest, including other comprehensive income. Includes, but is not limited to, balances of common stock, preferred stock, additional paid-in capital, other capital and retained earnings, accumulated balance for each classification of other comprehensive income and amount of comprehensive income.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-URI http://asc.fasb.org/topic&trid=2208762

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