Debt instrument repayment date.

No definition available.

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- Definition

Ration applied to debt service coverage with net cash flow divided by the amount of interest on the mortgage loan, servicing fees and trustee fees.

+ References

No definition available.

+ Details

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- Definition

Term Required To Maintain Reserve If Debt Service Coverage Ratio Is Exceeded

+ References

No definition available.

+ Details

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- Definition

Amount of noncash expense included in interest expense to issue debt and obtain financing associated with the related debt instruments. Alternate captions include noncash interest expense.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 28

-URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3602-108585

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 225

-SubTopic 10

-Section S99

-Paragraph 2

-Subparagraph (SX 210.5-03.8)

-URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 8

-Article 5

Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 04

-Paragraph 8

-Article 9

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Face (par) amount of debt instrument at time of issuance.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 835

-SubTopic 30

-Section 55

-Paragraph 8

-URI http://asc.fasb.org/extlink&oid=34725769&loc=d3e28878-108400

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 835

-SubTopic 30

-Section 45

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=6451184&loc=d3e28551-108399

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.22(a)(1))

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 22

-Article 5

+ Details

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Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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Data Type:	xbrli:stringItemType
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Period Type:	duration

- Definition

Date when the debt instrument is scheduled to be fully repaid, in CCYY-MM-DD format.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.22(a)(2))

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 22

-Article 5

+ Details

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Data Type:	xbrli:dateItemType
Balance Type:	na
Period Type:	duration

- Definition

Weighted average interest rate of debt outstanding.

+ References

No definition available.

+ Details

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Balance Type:	na
Period Type:	instant

- Definition

Carrying amount of long-term debt, net of unamortized discount or premium, including current and noncurrent amounts. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 942

-SubTopic 210

-Section S99

-Paragraph 1

-Subparagraph (SX 210.9-03.16)

-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.22)

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 944

-SubTopic 210

-Section S99

-Paragraph 1

-Subparagraph (SX 210.7-03.16)

-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910

Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 16

-Article 9

Reference 5: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 20, 22

-Article 5

Reference 6: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 16

-Article 7

+ Details

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Balance Type:	credit
Period Type:	instant

- Details

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Debt (Secured Tower Revenue Securities) (Narrative) (Details)						3 Months Ended		9 Months Ended
	Oct. 14, 2015 USD ($)	Oct. 15, 2014 USD ($)	Apr. 18, 2013 USD ($)	Aug. 09, 2012 USD ($)	Apr. 16, 2010 USD ($)	Sep. 30, 2015 USD ($)	Sep. 30, 2014 USD ($)	Sep. 30, 2015 USD ($)	Sep. 30, 2014 USD ($)	Dec. 31, 2014 USD ($)
Debt Instrument [Line Items]
Deferred financing fees						$ 4,803,000	$ 4,599,000	$ 13,973,000	$ 13,114,000
Aggregate debt						$ 8,486,850,000		$ 8,486,850,000		$ 7,860,799,000
5.101% 2010-2 Tower Securities [Member]
Debt Instrument [Line Items]
Debt instrument, face amount					$ 550,000,000
Debt instrument, interest rate, stated percentage					5.101%
Repayment date of debt instrument								Apr. 11, 2017
Debt instrument, maturity date								Apr. 09, 2042
Deferred financing fees					$ 8,100,000
2.933% 2012-1 Tower Securities [Member]
Debt Instrument [Line Items]
Debt instrument, face amount				$ 610,000,000
Debt instrument, interest rate, stated percentage				2.933%
Repayment date of debt instrument								Dec. 11, 2017
Debt instrument, maturity date								Dec. 09, 2042
Deferred financing fees				$ 14,900,000
2013 Tower Securities [Member]
Debt Instrument [Line Items]
Deferred financing fees			$ 25,500,000
Aggregate debt			$ 1,330,000,000
Debt instrument, weighted average interest rate			3.218%
2.240% 2013-1C Tower Securities [Member]
Debt Instrument [Line Items]
Debt instrument, face amount			$ 425,000,000
Debt instrument, interest rate, stated percentage			2.24%
Repayment date of debt instrument								Apr. 10, 2018
Debt instrument, maturity date								Apr. 09, 2043
3.598% 2013-1D Tower Securities [Member]
Debt Instrument [Line Items]
Debt instrument, face amount			$ 330,000,000
Debt instrument, interest rate, stated percentage			3.598%
Repayment date of debt instrument								Apr. 10, 2018
Debt instrument, maturity date								Apr. 09, 2043
3.722% 2013-2C Tower Securities [Member]
Debt Instrument [Line Items]
Debt instrument, face amount			$ 575,000,000
Debt instrument, interest rate, stated percentage			3.722%
Repayment date of debt instrument								Apr. 11, 2023
Debt instrument, maturity date								Apr. 09, 2048
2014 Tower Securities [Member]
Debt Instrument [Line Items]
Deferred financing fees		$ 22,500,000
Aggregate debt		$ 1,540,000,000
Debt instrument, weighted average interest rate		3.289%
2.898% 2014-1C Tower Securities [Member]
Debt Instrument [Line Items]
Debt instrument, face amount		$ 920,000,000
Debt instrument, interest rate, stated percentage		2.898%
Repayment date of debt instrument								Oct. 08, 2019
Debt instrument, maturity date								Oct. 11, 2044
3.869% 2014-2C Tower Securities [Member]
Debt Instrument [Line Items]
Debt instrument, face amount		$ 620,000,000
Debt instrument, interest rate, stated percentage		3.869%
Repayment date of debt instrument								Oct. 08, 2024
Debt instrument, maturity date								Oct. 08, 2049
Subsequent Event [Member] \| 2015-1C Tower Securities [Member]
Debt Instrument [Line Items]
Debt instrument, face amount	$ 500,000,000
Debt instrument, interest rate, stated percentage	3.156%
Repayment date of debt instrument	Oct. 08, 2020
Debt instrument, maturity date	Oct. 10, 2045
Deferred financing fees	$ 9,700,000
Debt service coverage ratio	2
Term required to maintain reserve if debt service coverage ratio is exceeded	2 months