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Share-Based Payments - Summary of Grants, Exchanges and Forfeitures of Restricted Stock and RSUs (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2016 | Dec. 31, 2014
LTIP [Member] | Restricted Stock [Member] |  |
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward] |  |
Outstanding at December 31, 2016 (in shares) | 432,120 | 208,416
LTIP [Member] | RSU [Member] |  |
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward] |  |
Outstanding at December 31, 2016 (in shares) | 1,703,775 | 503,750
January 2014 [Member] | LTIP [Member] | RSU [Member] |  |
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward] |  |
Canceled upon delivery (in shares) |  | (288,750)
April 2014, One [Member] | LTIP [Member] | Restricted Stock [Member] |  |
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward] |  |
Grant (in shares) |  | 8,931
Estimate Fair Value on Grant Date |  | $ 150
April 2014, One [Member] | LTIP [Member] | RSU [Member] |  |
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward] |  |
Canceled upon delivery (in shares) |  | (5,000,000)
April 2014, Two [Member] | LTIP [Member] | Restricted Stock [Member] |  |
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward] |  |
Grant (in shares) |  | 5,000
Estimate Fair Value on Grant Date |  | $ 85
June 2014 [Member] | LTIP [Member] | RSU [Member] |  |
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward] |  |
Grant (in shares) |  | 10,254
Estimate Fair Value on Grant Date |  | $ 169
December 2014, One [Member] | LTIP [Member] | Restricted Stock [Member] |  |
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward] |  |
Grant (in shares) |  | 51,767
Estimate Fair Value on Grant Date |  | $ 855
December 2014, Two [Member] | LTIP [Member] | RSU [Member] |  |
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward] |  |
Grant (in shares) |  | 390,000
Estimate Fair Value on Grant Date |  | $ 6,474
January 2015 [Member] | LTIP [Member] | RSU [Member] |  |
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward] |  |
Grant (in shares) |  | 8,000
Forfeiture (in shares) |  | (5,000)
Estimate Fair Value on Grant Date |  | $ 132
March 2015 [Member] | LTIP [Member] | RSU [Member] |  |
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward] |  |
Canceled upon delivery (in shares) |  | (20,000)
April 2015 [Member] | LTIP [Member] | Restricted Stock [Member] |  |
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward] |  |
Grant (in shares) |  | 15,950
Estimate Fair Value on Grant Date |  | $ 275
June 2015 [Member] | LTIP [Member] | RSU [Member] |  |
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward] |  |
Forfeiture (in shares) |  | (3,500)
July 2015 [Member] | LTIP [Member] | RSU [Member] |  |
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward] |  |
Grant (in shares) |  | 1,631
Estimate Fair Value on Grant Date |  | $ 27
August 2015 [Member] | LTIP [Member] | RSU [Member] |  |
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward] |  |
Forfeiture (in shares) |  | (5,000)
December 2015, One [Member] | LTIP [Member] | Restricted Stock [Member] |  |
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward] |  |
Grant (in shares) |  | 50,000
Estimate Fair Value on Grant Date |  | $ 874
December 2015, Two [Member] | LTIP [Member] | RSU [Member] |  |
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward] |  |
Grant (in shares) |  | 656,425
Estimate Fair Value on Grant Date |  | $ 11,461
January 2016 [Member] | LTIP [Member] | RSU [Member] |  |
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward] |  |
Canceled upon delivery (in shares) | (318,160) |
Forfeiture (in shares) | (1,667) |
February 2016 [Member] |  |
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward] |  |
Grant (in shares) | 47,028 |
February 2016 [Member] | LTIP [Member] | RSU [Member] |  |
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward] |  |
Estimate Fair Value on Grant Date | $ 729 |
March 2016 [Member] | LTIP [Member] | RSU [Member] |  |
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward] |  |
Grant (in shares) | 5,095 |
Estimate Fair Value on Grant Date | $ 81 |
April 2016 [Member] | LTIP [Member] | Restricted Stock [Member] |  |
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward] |  |
Grant (in shares) | 17,056 |
Estimate Fair Value on Grant Date | $ 275 |
June 2016 [Member] | LTIP [Member] | RSU [Member] |  |
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward] |  |
Forfeiture (in shares) | (14,972) |
July 2016 [Member] | LTIP [Member] | RSU [Member] |  |
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward] |  |
Canceled upon delivery (in shares) | (543) |
Grant (in shares) | 1,528 |
Forfeiture (in shares) | (12,792) |
Estimate Fair Value on Grant Date | $ 25 |
August 2016 [Member] | LTIP [Member] | RSU [Member] |  |
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward] |  |
Forfeiture (in shares) | (15,642) |
September 2016 [Member] | LTIP [Member] | RSU [Member] |  |
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward] |  |
Canceled upon delivery (in shares) | (41,281) |
Grant (in shares) | 6,146 |
Estimate Fair Value on Grant Date | $ 101 |
October 2016 [Member] | LTIP [Member] | RSU [Member] |  |
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward] |  |
Canceled upon delivery (in shares) | (30,900) |
November 2016 [Member] | LTIP [Member] | RSU [Member] |  |
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward] |  |
Canceled upon delivery (in shares) | (6,146) |
December 2016 [Member] | LTIP [Member] | Restricted Stock [Member] |  |
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward] |  |
Grant (in shares) | 75,000 |
Estimate Fair Value on Grant Date | $ 1,251 |
December 2016 [Member] | LTIP [Member] | RSU [Member] |  |
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward] |  |
Grant (in shares) | 843,271 |
Estimate Fair Value on Grant Date | $ 14,015 |

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- Definition Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Aggregate Grant Date Fair Value + References No definition available. + Details
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- Definition The number of equity-based payment instruments, excluding stock (or unit) options, that were forfeited during the reporting period. + 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 + Details
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- Definition The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan). + 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)(iii)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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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 + Details
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