401(K) Plan	12 Months Ended
Dec. 31, 2015
Notes to Financial Statements [Abstract]
Description of 401(K) Plan	NOTE L — 401(k) PLAN We have a 401(k) retirement plan (the "Plan") that covers substantially all employees and entitles them to contribute up to 70% of their annual compensation, subject to maximum limitations imposed by the Internal Revenue Code. We have historically matched 50% of each employee’s contribution up to 6% of annual compensation, subject to certain limitations as outlined in the Plan. In addition, we can make discretionary contributions which are allocable to participants in accordance with the Plan. Total expense related to our 401(k) plan was $4.2 million, $4.4 million, and $4.2 million in 2015, 2014, and 2013, respectively.

401(K) Plan

12 Months Ended

Dec. 31, 2015

Notes to Financial Statements [Abstract]

NOTE L — 401(k) PLAN

We have a 401(k) retirement plan (the "Plan") that covers substantially all employees and entitles them to contribute up to 70% of their annual compensation, subject to maximum limitations imposed by the Internal Revenue Code. We have historically matched 50% of each employee’s contribution up to 6% of annual compensation, subject to certain limitations as outlined in the Plan. In addition, we can make discretionary contributions which are allocable to participants in accordance with the Plan. Total expense related to our 401(k) plan was $4.2 million, $4.4 million, and $4.2 million in 2015, 2014, and 2013, respectively.