Income Taxes Schedule of Unrecognized Tax Benefits Roll Forward (Details) - USD ($) $ in Thousands |
12 Months Ended | |
|---|---|---|
Dec. 31, 2015 |
Dec. 31, 2014 |
|
| Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward] | ||
| Balance at beginning of period | $ 14,466 | $ 14,888 |
| Lapse of statute of limitations | (657) | (422) |
| Settlements | (1,180) | |
| Balance at end of period | $ 12,629 | $ 14,466 |