Restricted Stock Units

6 Months Ended

Jun. 30, 2019

Share-based Payment Arrangement [Abstract]

Pursuant to its stock incentive plan, the Company may issue restricted stock units ("RSUs") to employees of the Company and its subsidiaries. The RSUs generally vest three to five years from the award date and are subject to other vesting and forfeiture provisions contained in the award agreement. RSUs are expensed pro-ratably over the vesting period. RSU expenses were $25 million and $18 million for the six months ended June 30, 2019 and 2018, respectively. A summary of RSUs issued in the six months ended June 30, 2019 and 2018 follows:



($ in thousands)	Units	Fair Value
2019	5,141	$	308
2018	19,538	$	963