Summary of Significant Accounting Policies (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
Mar. 31, 2012	Mar. 31, 2011
Summary of Significant Accounting Policies [Abstract]
Customer surcharges	$ 29.7	$ 28.1
Number of reportable segment	1

A component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements.

No definition available.

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Namespace Prefix:	ftr_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant