Stockholders' Equity (Details) |
1 Months Ended | 3 Months Ended | ||
---|---|---|---|---|
Dec. 31, 2015
USD ($)
|
Mar. 31, 2017
USD ($)
transaction
$ / shares
|
Mar. 31, 2016
USD ($)
|
Jun. 30, 2015
USD ($)
|
|
Class of Stock [Line Items] | ||||
Up-front payment for common stock | $ 50,000,000 | $ 9,013,000 | ||
Common Class A [Member] | ||||
Class of Stock [Line Items] | ||||
Share repurchase program authorized amount | $ 150,000,000 | |||
ASR transaction accounted for as a treasury stock repurchase | $ 150,000,000 | |||
Accelerated Share Repurchase Agreement [Member] | ||||
Class of Stock [Line Items] | ||||
Stock repurchase program, number of transactions | transaction | 2 | |||
December 2015 Repurchase Plan [Member] | ||||
Class of Stock [Line Items] | ||||
Up-front payment for common stock | $ 10,000,000 | |||
Stock repurchased during period, value | $ 600,000 | |||
Stock repurchased during period, average cost per share (in USD per share) | $ / shares | $ 16.15 |