Stock Compensation Plans (Tables)

6 Months Ended

Jun. 30, 2018

Stock Compensation Plans [Abstract]

Equity Award Grants

Charter granted the following equity awards for the periods presented.

	Three Months Ended June 30,		Six Months Ended June 30,
	2018	2017	2018	2017
Stock options	36,700	42,600	1,466,500	1,145,200
Restricted stock	9,700	9,500	9,700	9,500
Restricted stock units	21,700	9,500	505,400	277,700