Shareholders' Equity (Tables)

3 Months Ended

Mar. 31, 2017

Stockholders' Equity Note [Abstract]

Summary of Share Count and Par Value Data Related to Shareholders' Equity

Share count and par value data related to shareholders’ equity are as follows:

	As of
	March 31,	December 31,
	2017	2016
Preferred Stock
Par value per share	No par value	No par value
Shares authorized	25,000,000	25,000,000
Shares outstanding	—	—
Common Stock
Par value per share	No par value	No par value
Shares authorized	75,000,000	75,000,000
Shares issued	56,544,741	56,456,516
Shares outstanding	32,850,719	32,762,494
Treasury stock
Shares held	23,694,022	23,694,022

Summary of Common Shares Outstanding

A roll-forward of common shares outstanding is as follows:

	Three Months Ended
	March 31,	March 31,
	2017	2016
Balance at the beginning of the year	32,762,494	32,548,477
Repurchases	—	—
Shares issued upon exercise of stock options	—	—
Restricted share issuances	88,225	210,166
Balance at the end of the period	32,850,719	32,758,643

Certain potentially dilutive restricted stock units are excluded from diluted earning per share because they are anti-dilutive. The number of awards that were anti-dilutive at March 31, 2017 and March 31, 2016 were 88,592 and 83,148, respectively.