Stockholders' Equity Cash Dividends (Details) - USD ($) $ / shares in Units, $ in Thousands |
3 Months Ended | 6 Months Ended | ||||||
|---|---|---|---|---|---|---|---|---|
Jun. 01, 2018 |
Mar. 01, 2018 |
Jun. 01, 2017 |
Mar. 01, 2017 |
Jun. 30, 2018 |
Jun. 30, 2017 |
Jun. 30, 2018 |
Jun. 30, 2017 |
|
| Equity [Abstract] | ||||||||
| Dividends declared per common share (in dollars per Share) | $ 0.075 | $ 0.075 | $ 0.05 | $ 0.05 | $ 0.075 | $ 0.05 | $ 0.150 | $ 0.100 |
| Dividends | $ 1,433 | $ 1,207 | $ 835 | $ 833 | ||||