Earnings Per Share - Additional Information (Details) - USD ($) $ / shares in Units, $ in Thousands		1 Months Ended	6 Months Ended
	Jun. 16, 2017	Mar. 31, 2017	Jun. 30, 2017	Jun. 30, 2016	Jul. 10, 2017	May 11, 2017	Feb. 23, 2017
Earnings Per Share Disclosure [Line Items]
Increase in dividend rate, percentage							5.00%
Cash dividend, amount per share (in dollars per share)						$ 0.32	$ 0.32
Payment for repurchase of common stock			$ 250,000	$ 0
Number of shares authorized to be repurchased (in shares)			15,000,000
Shares available for repurchase (in shares)			12,658,917
Accelerated Share Repurchase Agreement
Earnings Per Share Disclosure [Line Items]
Payment for repurchase of common stock		$ 250,000
Initial Delivery | Accelerated Share Repurchase Agreement
Earnings Per Share Disclosure [Line Items]
Repurchase of common stock shares (in shares)		1,948,178
Final Settlement | Accelerated Share Repurchase Agreement
Earnings Per Share Disclosure [Line Items]
Repurchase of common stock shares (in shares)	392,905
Total Delivery | Accelerated Share Repurchase Agreement
Earnings Per Share Disclosure [Line Items]
Repurchase of common stock shares (in shares)			2,341,083
Subsequent Event
Earnings Per Share Disclosure [Line Items]
Cash dividend, amount per share (in dollars per share)					$ 0.32