XML 36 R78.htm IDEA: XBRL DOCUMENT
v2.4.1.9

Supplemental Cash Flow Disclosures (Details) (USD $) | 12 Months Ended
--- | ---
Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2012
Supplemental cash flow disclosures |  |  |
Interest paid | $ 54,955,000 us-gaap_InterestPaid | $ 42,904,000 us-gaap_InterestPaid | $ 44,048,000 us-gaap_InterestPaid
Income taxes paid (refunded) | 33,276,000 us-gaap_IncomeTaxesPaidNet | 157,778,000 us-gaap_IncomeTaxesPaidNet | (58,609,000)us-gaap_IncomeTaxesPaidNet
Supplemental cash flows, stock based compensation |  |  |
Cash receipts upon exercise of stock options | 5,166,000 us-gaap_ProceedsFromStockOptionsExercised | 10,468,000 us-gaap_ProceedsFromStockOptionsExercised | 900,000 us-gaap_ProceedsFromStockOptionsExercised
Cash disbursements for payments of taxes | (4,336,000)us-gaap_PaymentsRelatedToTaxWithholdingForShareBasedCompensation | (4,684,000)us-gaap_PaymentsRelatedToTaxWithholdingForShareBasedCompensation | (3,105,000)us-gaap_PaymentsRelatedToTaxWithholdingForShareBasedCompensation
Net cash receipts (disbursements) from exercise of stock options and vesting of other stock awards | 830,000 us-gaap_ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptions | 5,784,000 us-gaap_ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptions | (2,205,000)us-gaap_ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptions
Auction 901 Mobility Funds |  |  |
Supplemental cash flow disclosures |  |  |
FCC auction date | Sep. 27, 2012 |  |
Letters of credit outstanding | 17,400,000 usm_LineOfCreditFacilityLettersOfCreditOutstanding / usm_FccAuctionAxis = usm_Auction901MobilityFundsMember |  |
FCC auction amount received | 13,400,000 usm_FccAuctionAmountReceived / usm_FccAuctionAxis = usm_Auction901MobilityFundsMember |  |
FCC auction number of states won | 10 usm_FccAuctionNumberOfStatesWon / usm_FccAuctionAxis = usm_Auction901MobilityFundsMember |  |
Other assets and deferred charges | Auction 901 Mobility Funds |  |  |
Supplemental cash flow disclosures |  |  |
FCC auction amount received | 1,900,000 usm_FccAuctionAmountReceived / us-gaap_BalanceSheetLocationAxis = us-gaap_OtherNoncurrentAssetsMember / usm_FccAuctionAxis = usm_Auction901MobilityFundsMember |  |
Property, plant and equipment, net | Auction 901 Mobility Funds |  |  |
Supplemental cash flow disclosures |  |  |
FCC auction amount received | 11,500,000 usm_FccAuctionAmountReceived / us-gaap_BalanceSheetLocationAxis = us-gaap_PropertyPlantAndEquipmentMember / usm_FccAuctionAxis = usm_Auction901MobilityFundsMember |  |
Maximum | Auction 901 Mobility Funds |  |  |
Supplemental cash flow disclosures |  |  |
FCC auction amount | 300,000,000 usm_FccAuctionAmount / usm_FccAuctionAxis = usm_Auction901MobilityFundsMember / us-gaap_RangeAxis = us-gaap_MaximumMember |  |
FCC auction amount awarded | 40,100,000 usm_FccAuctionAmountAwarded / usm_FccAuctionAxis = usm_Auction901MobilityFundsMember / us-gaap_RangeAxis = us-gaap_MaximumMember |  |
Common Shares |  |  |
Supplemental cash flows, stock based compensation |  |  |
Shares withheld | 163,355 usm_SharesPaidForTaxWithholdingAndExerciseOfStockOptionsForShareBasedCompensation / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassBMember | 606,582 usm_SharesPaidForTaxWithholdingAndExerciseOfStockOptionsForShareBasedCompensation / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassBMember | 92,846 usm_SharesPaidForTaxWithholdingAndExerciseOfStockOptionsForShareBasedCompensation / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassBMember
Aggregate value of shares withheld | $ 6,868,000 usm_SharesPaidForTaxWithholdingAndExerciseOfStockOptionsForShareBasedCompensationValue / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassBMember | $ 25,179,000 usm_SharesPaidForTaxWithholdingAndExerciseOfStockOptionsForShareBasedCompensationValue / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassBMember | $ 3,604,000 usm_SharesPaidForTaxWithholdingAndExerciseOfStockOptionsForShareBasedCompensationValue / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassBMember

X
- Definition The amount of cash paid during the current period to foreign, federal, state, and local authorities as taxes on income, net of any cash received during the current period as refunds for the overpayment of taxes. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4297-108586 + Details
Name: | us-gaap_IncomeTaxesPaidNet
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The amount of cash paid for interest during the period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4297-108586 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 25 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3536-108585 + Details
Name: | us-gaap_InterestPaid
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Details
Name: | us-gaap_NoncashInvestingAndFinancingItemsAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of cash outflow to satisfy an employee's income tax withholding obligation as part of a net-share settlement of a share-based award. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3291-108585 + Details
Name: | us-gaap_PaymentsRelatedToTaxWithholdingForShareBasedCompensation
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The total cash inflow associated with the amount received from holders to acquire the entity's shares under incentive and share awards, including stock option exercises. This item inherently excludes any excess tax benefit, which the entity may have realized and reported separately. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Financing Activities -URI http://asc.fasb.org/extlink&oid=6513228 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3255-108585 + Details
Name: | us-gaap_ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptions
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The cash inflow associated with the amount received from holders exercising their stock options. This item inherently excludes any excess tax benefit, which the entity may have realized and reported separately. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Financing Activities -URI http://asc.fasb.org/extlink&oid=6513228 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (j) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3255-108585 + Details
Name: | us-gaap_ProceedsFromStockOptionsExercised
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Details
Name: | us-gaap_SupplementalCashFlowInformationAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The total amount the Federal Communications Commission will award to successful auction bidders. + References No definition available. + Details
Name: | usm_FccAuctionAmount
Namespace Prefix: | usm_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The amount the entity was awarded in the Federal Communications Commission auction. + References No definition available. + Details
Name: | usm_FccAuctionAmountAwarded
Namespace Prefix: | usm_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition The amount the entity received resulting from the Federal Communications Commission auction. + References No definition available. + Details
Name: | usm_FccAuctionAmountReceived
Namespace Prefix: | usm_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Month, date and year in which the Federal Communications Commission auction took place. + References No definition available. + Details
Name: | usm_FccAuctionDate
Namespace Prefix: | usm_
Data Type: | xbrli:dateItemType
Balance Type: | na
Period Type: | duration

X
- Definition The number of states the entity won in the Federal Communications Commission auction. + References No definition available. + Details
Name: | usm_FccAuctionNumberOfStatesWon
Namespace Prefix: | usm_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition Amount of Letters of credit outstanding on revolving credit facility. + References No definition available. + Details
Name: | usm_LineOfCreditFacilityLettersOfCreditOutstanding
Namespace Prefix: | usm_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition For net-share settlement of share-based awards when the employer withholds shares for the exercise price and income tax withholding obligations, this element represents the number of shares the employees use to repay the employer. + References No definition available. + Details
Name: | usm_SharesPaidForTaxWithholdingAndExerciseOfStockOptionsForShareBasedCompensation
Namespace Prefix: | usm_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition For net-share settlement of share-based awards when the employer withholds shares for the exercise price and income tax withholding obligations, this element represents the value of shares the employees use to repay the employer. + References No definition available. + Details
Name: | usm_SharesPaidForTaxWithholdingAndExerciseOfStockOptionsForShareBasedCompensationValue
Namespace Prefix: | usm_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Details
Name: | us-gaap_BalanceSheetLocationAxis=us-gaap_OtherNoncurrentAssetsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_BalanceSheetLocationAxis=us-gaap_PropertyPlantAndEquipmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RangeAxis=us-gaap_MaximumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementClassOfStockAxis=us-gaap_CommonClassBMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | usm_FccAuctionAxis=usm_Auction901MobilityFundsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |