Stock-Based Compensation (Tables)

3 Months Ended

Mar. 31, 2019

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Schedule of Share-based Compensation, Equity Instruments Other Than Options, Activity

The table below summarizes award activity.

	Three Months Ended
	March 31, 2019				March 31, 2018
	Number of Awards		Weighted average grant-date fair value		Number of Awards		Weighted average grant-date fair value
Outstanding at beginning of period	969,928		$	15.89	873,849		$	12.30
Granted	276,496		23.24		206,695		26.53
Converted	(130,764	)	16.74		(96,616	)	10.89
Expired	—		—		—		—
Forfeited	—		—		—		—
Outstanding at end of period	1,115,660		$	17.61	983,928		$	15.43
Vested	337,060		$	8.04	326,928		$	7.18