Consolidated Balance Sheet Parenthetical (USD $) In Thousands, except Per Share data, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Current assets
Due from customers and agents, allowances	$ 41,431	$ 63,690
Other, allowances	1,141	1,914
Investments
Other intangible assets, accumulated amortization	133,823	112,752
TDS shareholders' equity
Authorized shares	290,000us-gaap_CommonStockSharesAuthorized	290,000us-gaap_CommonStockSharesAuthorized
Issued shares	132,749us-gaap_CommonStockSharesIssued	132,711us-gaap_CommonStockSharesIssued
Outstanding shares	107,899us-gaap_CommonStockSharesOutstanding	108,757us-gaap_CommonStockSharesOutstanding
Par value	1,327us-gaap_CommonStockValue	1,327us-gaap_CommonStockValue
Treasury Shares
TDS shareholders' equity
Treasury shares	24,850	23,954
Series A Common Shares
TDS shareholders' equity
Authorized shares	25,000	25,000
Issued shares	7,179	7,166
Outstanding shares	7,179	7,166
Par value per share	$ 0.01	$ 0.01
Par value	72	72
Common Shares
TDS shareholders' equity
Authorized shares	265,000	265,000
Issued shares	125,570	125,545
Outstanding shares	100,720	101,591
Par value per share	$ 0.01	$ 0.01
Par value	$ 1,255	$ 1,255
Common Shares \| Treasury Shares
TDS shareholders' equity
Treasury shares	24,850	23,954

A valuation allowance for trade and other receivables due to an Entity within one year (or the normal operating cycle, whichever is longer) that are expected to be uncollectible.

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