Equity-Based Compensation (Cash Paid to Settle Liability Awards) (Details) - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
MSPP
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock units credited	$ 3,137	$ 1,901	$ 2,120
Restricted stock units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock units credited	$ 198,155	$ 94,047	$ 119,105
Restricted stock units balance, vested and unvested	646,669	519,668	647,371
Management
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
MSPP expense (in thousands)	$ 8,565	$ 2,767	$ 329

The amount of plan compensation cost recognized during the period.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 40
-Section 50
-Paragraph 1
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=65895303&loc=d3e17540-113929

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Amount of cash paid related to share-based compensation liabilities.

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

+ 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)(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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