Income Taxes - Summary of Federal Net Operating Loss Carryforwards and Related Deferred Income Tax Assets (Details) - USD ($) $ in Millions	Dec. 31, 2015	Dec. 31, 2014
Income Tax Contingency [Line Items]
Deferred Tax Asset	$ 30.5	$ 31.7
Internal Revenue Service (IRS) [Member]
Income Tax Contingency [Line Items]
NOL Carry-forwards	87.1
Deferred Tax Asset	30.5
Internal Revenue Service (IRS) [Member] | 2020 [Member]
Income Tax Contingency [Line Items]
NOL Carry-forwards	7.8
Deferred Tax Asset	2.7
Internal Revenue Service (IRS) [Member] | 2021 through 2025 [Member]
Income Tax Contingency [Line Items]
NOL Carry-forwards	30.5
Deferred Tax Asset	10.7
Internal Revenue Service (IRS) [Member] | 2026 through 2030 [Member]
Income Tax Contingency [Line Items]
NOL Carry-forwards	29.9
Deferred Tax Asset	10.5
Internal Revenue Service (IRS) [Member] | 2031 through 2032 [Member]
Income Tax Contingency [Line Items]
NOL Carry-forwards	18.9
Deferred Tax Asset	$ 6.6