Stockholders' Equity (Tables)

9 Months Ended

Sep. 30, 2019

Equity [Abstract]

Schedule of Common Stock Outstanding Roll Forward

The changes in shares of Common and Treasury Stock are as follows:

(in thousands)	Common Shares Issued	Treasury Stock Shares		Common Shares Outstanding
Balance as of January 1, 2019	19,067	429		18,638
Net shares issued for Stock awards	—	(168	)	168
Shares issued to Weichai *	4,050	—		4,050
Balance as of September 30, 2019	23,117	261		22,856

* See Note 3.Weichai Transactionsfor additional information.