Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2016

Accounting Policies [Abstract]

Schedule of Other Assets [Table Text Block]

Other assets consisted of the following (in thousands):

	2016		2015
Cash surrender value of life insurance	$	39,059	$	36,087
Investments in unconsolidated affiliates	3,224		2,719
Other	4,841		4,801
Total other assets	$	47,124	$	43,607

Schedule of Weighted Average Number of Shares [Table Text Block]

The following table summarizes the calculation of weighted average common shares outstanding used in the computation of diluted earnings per share (in thousands):

	For the Years Ended December 31,
	2016	2015	2014
Weighted average basic common shares outstanding	43,479	42,747	44,362
Effect of dilutive securities:
Performance shares	127	98	110
Restricted stock	64	63	128
Weighted average diluted common and potential   common shares outstanding	43,670	42,908	44,600