| Component: (Network and Table) | |
|---|---|
| Network | 00500 - Statement - CONSOLIDATED STATEMENTS OF CASH FLOWS (http://www.zayo.com/role/StatementConsolidatedStatementsOfCashFlows)  | 
| Table | Statement [Table] | 
| Reporting Entity [Axis] | 0001502756 (http://www.sec.gov/CIK) | 
| Business Acquisition [Axis] | Business Acquisition, Acquiree | 
| Statement [Line Items] | Period [Axis] | ||
|---|---|---|---|
2015-07-01 - 2016-06-30  | 2014-07-01 - 2015-06-30  | 2013-07-01 - 2014-06-30  | |
Cash flows from operating activities  | |||
Net loss  | (76,200,000)   | (155,100,000)   | (177,100,000)   | 
Adjustments to reconcile net loss to net cash provided by operating activities  | |||
Depreciation and amortization  | 516,300,000    | 406,200,000    | 338,200,000    | 
Loss on extinguishment of debt  | 33,800,000    | 94,300,000    | 1,900,000    | 
Non-cash interest expense  | |||
Stock-based compensation  | |||
Amortization of deferred revenue  | (  | (  | (  | 
Additions to deferred revenue  | |||
Foreign currency loss on intercompany loans  | 53,800,000    | 24,400,000    | (4,700,000)   | 
Excess tax benefit from stock-based compensation  | (  | ||
Deferred income taxes  | (  | (  | |
Provision for bad debts  | |||
Non-cash loss on investments  | |||
Changes in operating assets and liabilities, net of acquisitions  | |||
Trade receivables  | (  | ||
Prepaid expenses  | (  | (  | |
Accounts payable and accrued liabilities  | (  | (  | (  | 
Other assets and liabilities  | (  | (  | (  | 
Net cash provided by operating activities  | |||
Cash flows from investing activities  | |||
Purchases of property and equipment  | (  | (  | (  | 
Cash paid for acquisitions, net of cash acquired  | (  | (  | (  | 
Net cash used in investing activities  | (  | (  | (  | 
Cash flows from financing activities  | |||
Proceeds from debt  | |||
Proceeds from revolving credit facility  | |||
Proceeds from equity contributions  | |||
Principal payments on long-term debt  | (  | (  | (  | 
Payment of early redemption fees on debt extinguished  | (  | (  | |
Principal repayments on capital lease obligations  | (  | (  | (  | 
Payments on revolving credit facility  | (  | ||
Payment of debt issue costs  | (  | (  | (  | 
Payments to repurchase ZGH common stock  | (  | (  | |
Excess tax benefit from stock-based compensation  | |||
Net cash provided by financing activities  | |||
Net cash flows  | (  | ||
Effect of changes in foreign exchange rates on cash  | (  | (  | |
Net increase/(decrease) in cash and cash equivalents  | (  | ||
Cash and cash equivalents, beginning of period  | 308,000,000    | ||
Cash and cash equivalents, end of period  | 170,100,000    | 308,000,000    | 297,400,000    | 
Supplemental disclosure of non-cash investing and financing activities:  | |||
Cash paid for interest, net of capitalized interest  | |||
Cash paid for income taxes  | |||
Non-cash purchases of equipment through capital leasing  | |||
Increase in accounts payable and accrued expenses for purchases of property and equipment  | |||