Fair value portion of debt instrument payable, including, but not limited to, notes payable and loans payable.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 10
-URI http://asc.fasb.org/extlink&oid=121572278&loc=d3e13433-108611

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- Definition

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

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-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=120391452&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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Fair Value (Details) - USD ($) $ in Thousands	Sep. 30, 2021	Jun. 01, 2021	Jan. 26, 2021	Jan. 04, 2021	Dec. 31, 2020	Aug. 21, 2020	Dec. 21, 2016	Mar. 17, 2015	May 06, 2014
5.125 senior notes due 2022
Financial Instruments
Interest rate (as a percent)					5.125%				5.125%
5.625% senior notes due 2023
Financial Instruments
Interest rate (as a percent)					5.625%			5.625%
5.00% senior notes due 2025
Financial Instruments
Interest rate (as a percent)	5.00%				5.00%		5.00%
8.375% Senior Notes Due 2026
Financial Instruments
Interest rate (as a percent)	8.375%			8.375%
7.625% Senior Notes Due 2029
Financial Instruments
Interest rate (as a percent)	7.625%		7.625%
5.375% senior notes due 2030
Financial Instruments
Interest rate (as a percent)	5.375%	5.375%
4.25% convertible senior notes due 2026
Financial Instruments
Interest rate (as a percent)	4.25%				4.25%	4.25%
Fair value \| Level 2 market data
Financial Instruments
Value	$ 2,741,077				$ 2,212,629
Fair value \| Level 2 market data \| 5.125 senior notes due 2022
Financial Instruments
Value					658,468
Fair value \| Level 2 market data \| 5.625% senior notes due 2023
Financial Instruments
Value					562,698
Fair value \| Level 2 market data \| 5.00% senior notes due 2025
Financial Instruments
Value	601,800				560,500
Fair value \| Level 2 market data \| 8.375% Senior Notes Due 2026
Financial Instruments
Value	368,128
Fair value \| Level 2 market data \| 7.625% Senior Notes Due 2029
Financial Instruments
Value	782,600
Fair value \| Level 2 market data \| 5.375% senior notes due 2030
Financial Instruments
Value	631,860
Fair value \| Level 2 market data \| 4.25% convertible senior notes due 2026
Financial Instruments
Value	356,689				430,963
Carrying value
Financial Instruments
Value	2,243,533				1,984,593
Carrying value \| 5.125 senior notes due 2022
Financial Instruments
Value					658,400
Carrying value \| 5.625% senior notes due 2023
Financial Instruments
Value					571,370
Carrying value \| 5.00% senior notes due 2025
Financial Instruments
Value	586,191				585,440
Carrying value \| 8.375% Senior Notes Due 2026
Financial Instruments
Value	321,570
Carrying value \| 7.625% Senior Notes Due 2029
Financial Instruments
Value	691,575
Carrying value \| 5.375% senior notes due 2030
Financial Instruments
Value	593,072
Carrying value \| 4.25% convertible senior notes due 2026
Financial Instruments
Value	$ 51,125				$ 169,383