Stockholders' Equity - Stock Repurchase Program and Cash Dividends (Details) |
3 Months Ended | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Feb. 13, 2018
$ / shares
|
Dec. 12, 2017
$ / shares
|
Sep. 12, 2017
$ / shares
|
Jun. 13, 2017
$ / shares
|
Mar. 14, 2017
$ / shares
|
Dec. 13, 2016
$ / shares
|
Sep. 13, 2016
$ / shares
|
Jun. 14, 2016
$ / shares
|
Mar. 15, 2016
$ / shares
|
Oct. 28, 2017
USD ($)
shares
|
Jul. 29, 2017
USD ($)
shares
|
Mar. 16, 2018
USD ($)
|
Feb. 03, 2018
USD ($)
item
|
Apr. 10, 2017
USD ($)
|
Jan. 28, 2017
item
|
|
| Stockholders' Equity | |||||||||||||||
| Stock Repurchase Program, Authorized Amount | $ 25,000,000 | ||||||||||||||
| Aggregate value of stock repurchases that cause program to expire | $ 25,000,000 | $ 25,000,000 | |||||||||||||
| Cash dividends declared per share | $ / shares | $ 0.08 | ||||||||||||||
| Number of quarters dividends paid | item | 4 | 4 | |||||||||||||
| Cash dividend paid per share | $ / shares | $ 0.08 | $ 0.08 | $ 0.08 | $ 0.06 | $ 0.06 | $ 0.06 | $ 0.06 | $ 0.06 | |||||||
| Stock Repurchase Program | |||||||||||||||
| Stockholders' Equity | |||||||||||||||
| Stock Repurchased During Period Shares | shares | 1,201,000 | 1,201,000 | |||||||||||||
| Additional shares which could be repurchased | $ 0 | ||||||||||||||
| Stock Repurchase Program | Maximum | |||||||||||||||
| Stockholders' Equity | |||||||||||||||
| Stock Repurchase Program, Authorized Amount | $ 25,000 | ||||||||||||||