Restricted Stock Units

9 Months Ended

Sep. 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 $36 million and $26 million for the nine months ended September 30, 2019 and 2018, respectively. A summary of RSUs issued in the nine months ended September 30, 2019 and 2018 follows:



($ in thousands)	Units	Fair Value
2019	839,263	$	59,435
2018	1,135,941	$	57,796