Stock-based Compensation (Tables)

12 Months Ended

Dec. 31, 2018

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Schedule of Stock Options Activity

A summary of the status of Heartland's common stock options as of December 31, 2018, 2017 and 2016, and changes during the years ended December 31, 2018, 2017 and 2016, follows:

	2018				2017				2016
	Shares		Weighted-Average Exercise Price		Shares		Weighted-Average Exercise Price		Shares		Weighted-Average Exercise Price
Outstanding at January 1	6,500		$	18.60	26,400		$	18.60	125,950		$	24.08
Granted	—		—		—		—		—		—
Exercised	(6,500	)	18.60		(19,400	)	18.60		(97,800	)	25.59
Forfeited	—		—		(500	)	18.60		(1,750	)	21.10
Outstanding at December 31	—		$	—	6,500		$	18.60	26,400		$	18.60
Options exercisable at December 31	—		$	—	6,500		$	18.60	26,400		$	18.60

Summary of Status of RSUs

A summary of the status of RSUs as of December 31, 2018, 2017 and 2016, and changes during the years ended December 31, 2018, 2017, and 2016, follows:

	2018				2017				2016
	Shares		Weighted-Average Grant Date Fair Value		Shares		Weighted-Average Grant Date Fair Value		Shares		Weighted-Average Grant Date Fair Value
Outstanding at January 1	301,578		$	34.74	346,817		$	27.61	353,195		$	25.53
Granted	123,711		55.13		109,373		47.22		143,721		29.75
Vested	(127,744	)	32.73		(137,394	)	26.66		(126,614	)	23.83
Forfeited	(30,550	)	45.69		(17,218	)	34.02		(23,485	)	29.80
Outstanding at December 31	266,995		$	43.89	301,578		$	34.74	346,817		$	27.61