Employee Benefit Plans - Summary of Restricted Stock Activity (Details) - Restricted Stock	3 Months Ended
	Mar. 31, 2016 $ / shares shares
Number of Units
Non-vested as of January 1, 2016 (in shares) | shares	1,311,423
Granted | shares	4,105
Vested | shares	(44,579)
Canceled or forfeited | shares	(4,443)
Non-vested as of March 31, 2016 (in shares) | shares	1,266,506
Weighted Average Grant Date Fair Value
Non-vested at January 1, 2016 (in dollars per share) | $ / shares	$ 25.16
Granted | $ / shares	31.68
Vested | $ / shares	26.50
Canceled or forfeited | $ / shares	28.74
Non-vested at March 31, 2016 (in dollars per share) | $ / shares	$ 25.12