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Share-Based Compensation - Performance Units/Performance Share Units Activity (Details) - shares shares in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Performance Units
Number of Shares
Outstanding at beginning of period (in shares)	66	31	0
Granted (in shares)	0	47	31
Vested (in shares)	(28)	0	0
Forfeited /canceled (in shares)	0	(12)	0
Outstanding at end of period (in shares)	38	66	31
Performance Units | Performance Period Ending December 2015
Number of Shares
Vested (in shares)	0	9	12
Unvested (in shares)	0	19	19
Performance Units | Performance Period Ending December 2016
Number of Shares
Vested (in shares)	26	13	0
Unvested (in shares)	12	25	0
Performance Share Units
Number of Shares
Outstanding at beginning of period (in shares)	0
Granted (in shares)	2,044
Forfeited /canceled (in shares)	(151)
Outstanding at end of period (in shares)	1,893	0
Performance Share Units | Performance Period Ending December 2017
Number of Shares
Vested (in shares)	695
Unvested (in shares)	1,198

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- Definition

The number of vested equity-based payment instruments, excluding stock (or unit) options, that validly exit and are outstanding as of the balance sheet date.

+ References

No definition available.

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- Definition

Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Vested

+ References

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- Definition

The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(2)(i)-(ii)
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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- Definition

A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

+ References

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- Definition

Number of shares under non-option equity instrument agreements that were cancelled as a result of occurrence of a terminating event.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(1)(iv)(3)
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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- Definition

Net number of non-option equity instruments granted to participants.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(1)(iv)(1)
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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- Definition

Number of equity instruments other than options outstanding, including both vested and non-vested instruments.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(1)(i)
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(1)(ii)
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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