Summary Of Quarterly Results (Unaudited)

12 Months Ended

Dec. 31, 2015

Summary of Quarterly Results (Unaudited) [Abstract]

Summary of Quarterly Results (Unaudited)

13.       SUMMARY OF QUARTERLY RESULTS (UNAUDITED)

							Net Income Per
							Common Share(1)
	(Amounts in thousands, except per share amounts)		Revenues		Net Income		Basic		Diluted
	2015
		December 31	$	52,819	$	23,572	$	4.61	$	4.61
		September 30		52,414		18,172		3.55		3.55
		June 30		50,646		17,341		3.39		3.39
		March 31		52,036		17,822		3.49		3.49
	2014
		December 31	$	51,286	$	18,161	$	3.55	$	3.55
		September 30		50,077		17,692		3.46		3.46
		June 30		49,983		16,828		3.29		3.29
		March 31		49,468		15,244		2.98		2.98
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(1)	The total for the year may differ from the sum of the quarters as a result of weighting.