Represents the portion of cash interest incurred in the period on debt arrangements that was charged against earnings.

No definition available.

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- Definition

Represents the portion of non-cash interest incurred in the period on debt arrangements that was charged against earnings.

+ References

No definition available.

+ Details

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- 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

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- 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.

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Debt (Schedule Of Cash And Non-Cash Interest Expense) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016	Aug. 15, 2016	Jul. 07, 2016	Oct. 14, 2015	Jul. 01, 2014	Aug. 09, 2012
Debt Instrument [Line Items]
Cash Interest	$ 77,602	$ 83,804
Non-cash Interest	705	455
Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Cash Interest	$ 2,770	833
5.625% Senior Notes [Member]
Debt Instrument [Line Items]
Cash Interest		7,031
Debt instrument, interest rate, stated percentage	5.625%		5.625%
5.75% Senior Notes [Member]
Debt Instrument [Line Items]
Cash Interest		11,500
Debt instrument, interest rate, stated percentage	5.75%		5.75%
2014 Senior Notes [Member]
Debt Instrument [Line Items]
Cash Interest	$ 9,141	9,141
Non-cash Interest	178	169
Debt instrument, interest rate, stated percentage						4.875%
2016 Senior Notes [Member]
Debt Instrument [Line Items]
Cash Interest	13,406
Non-cash Interest	234
Debt instrument, interest rate, stated percentage			4.875%
2010-2C Tower Securities [Member]
Debt Instrument [Line Items]
Cash Interest		7,058
2012-1C Tower Securities [Member]
Debt Instrument [Line Items]
Cash Interest	4,524	4,534
Debt instrument, interest rate, stated percentage							2.933%
2013 Tower Securities [Member]
Debt Instrument [Line Items]
Cash Interest	10,804	10,804
2014 Tower Securities [Member]
Debt Instrument [Line Items]
Cash Interest	12,785	12,785
2015-1C Tower Securities [Member]
Debt Instrument [Line Items]
Cash Interest	3,985	3,985
Debt instrument, interest rate, stated percentage					3.156%
2016-1C Tower Securities [Member]
Debt Instrument [Line Items]
Cash Interest	5,090
Debt instrument, interest rate, stated percentage				2.877%
2014 Term Loan [Member]
Debt Instrument [Line Items]
Cash Interest	11,284	12,138
Non-cash Interest	128	125
2015 Term Loan [Member]
Debt Instrument [Line Items]
Cash Interest	3,800	4,087
Non-cash Interest	165	161
Capitalized Interest And Other [Member]
Debt Instrument [Line Items]
Cash Interest	$ 13	$ (92)