Consolidated Statement of Comprehensive Income (Parenthetical) - USD ($) $ in Thousands |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2016 |
Dec. 31, 2015 |
Dec. 31, 2014 |
|
| Statement of Comprehensive Income [Abstract] | |||
| Income Tax Expense (Benefit), Discontinued Operations | $ 0 | $ 0 | $ 1,200 |
| Income Tax Expense (Benefit) on Gain (Loss), Discontinued Operations | $ 0 | $ 140 | $ 5,975 |