CenturyLink Merger (Notes)	6 Months Ended
Jun. 30, 2017
Business Combinations [Abstract]
CenturyLink Merger	(2) CenturyLink Merger On October 31, 2016, we entered into an agreement and plan of merger with CenturyLink, Inc., a Louisiana corporation, Wildcat Merger Sub 1 LLC, a Delaware limited liability company and an indirect wholly owned subsidiary of CenturyLink, and WWG Merger Sub LLC, a Delaware limited liability company and an indirect wholly owned subsidiary of CenturyLink, pursuant to which, subject to the satisfaction or waiver of the conditions set forth in the Merger Agreement, we will be acquired by CenturyLink in a cash and stock transaction, including the assumption of our debt. Under the Merger Agreement, at the effective time of the merger of Merger Sub 1 with and into us (the "Initial Merger"), (i) each issued and outstanding share of our common stock, will be converted into 1.4286 shares (the "Stock Consideration") of CenturyLink's common stock par value $1.00 per share and (ii) the right to receive $26.50 in cash (the "Cash Consideration" and, together with the Stock Consideration, the "Merger Consideration"). In addition, the Merger Agreement provides that at the effective time of the CenturyLink Merger, each issued and outstanding restricted stock unit award granted prior to April 1, 2014 and each restricted stock unit award granted to a non-employee member of our Board of Directors will be exchanged for the Merger Consideration. Further, at the effective time of the CenturyLink Merger, each issued and outstanding restricted stock unit award granted on or after April 1, 2014, other than those granted to non-employee members of our Board of Directors, will be assumed and converted automatically into a restricted stock unit award of CenturyLink common stock that will be subject to the same service-based vesting conditions as applicable to such awards prior to the transaction (but not any performance-based vesting conditions, which will be deemed satisfied based on forecasted and adjusted results through the closing of the transaction (as determined by Compensation Committee of our Board of Directors)). The CenturyLink Merger is subject to the receipt of certain regulatory approvals, including expiration or termination of the applicable waiting period under the Hart-Scott-Rodino Antitrust Improvements Act, review by the U.S. Federal Communications Commission, certain state regulatory approvals and other customary closing conditions. The transaction has received approval of CenturyLink's shareholders and our stockholders.

(2) CenturyLink Merger

On October 31, 2016, we entered into an agreement and plan of merger with CenturyLink, Inc., a Louisiana corporation, Wildcat Merger Sub 1 LLC, a Delaware limited liability company and an indirect wholly owned subsidiary of CenturyLink, and WWG Merger Sub LLC, a Delaware limited liability company and an indirect wholly owned subsidiary of CenturyLink, pursuant to which, subject to the satisfaction or waiver of the conditions set forth in the Merger Agreement, we will be acquired by CenturyLink in a cash and stock transaction, including the assumption of our debt.

Under the Merger Agreement, at the effective time of the merger of Merger Sub 1 with and into us (the "Initial Merger"), (i) each issued and outstanding share of our common stock, will be converted into 1.4286 shares (the "Stock Consideration") of CenturyLink's common stock par value $1.00 per share and (ii) the right to receive $26.50 in cash (the "Cash Consideration" and, together with the Stock Consideration, the "Merger Consideration"). In addition, the Merger Agreement provides that at the effective time of the CenturyLink Merger, each issued and outstanding restricted stock unit award granted prior to April 1, 2014 and each restricted stock unit award granted to a non-employee member of our Board of Directors will be exchanged for the Merger Consideration. Further, at the effective time of the CenturyLink Merger, each issued and outstanding restricted stock unit award granted on or after April 1, 2014, other than those granted to non-employee members of our Board of Directors, will be assumed and converted automatically into a restricted stock unit award of CenturyLink common stock that will be subject to the same service-based vesting conditions as applicable to such awards prior to the transaction (but not any performance-based vesting conditions, which will be deemed satisfied based on forecasted and adjusted results through the closing of the transaction (as determined by Compensation Committee of our Board of Directors)). The CenturyLink Merger is subject to the receipt of certain regulatory approvals, including expiration or termination of the applicable waiting period under the Hart-Scott-Rodino Antitrust Improvements Act, review by the U.S. Federal Communications Commission, certain state regulatory approvals and other customary closing conditions.

The transaction has received approval of CenturyLink's shareholders and our stockholders.