Stock-based Compensation (Tables)

12 Months Ended

Dec. 31, 2015

Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]

Stock Option Activity under Company's Incentive Plans

The following table summarizes information related to stock option activity under the Company’s incentive plans for the year ended December 31, 2015:

	Number of Options			Weighted Average Exercise Price
Outstanding at January 1, 2015		23,030		$	164.50
Expired or forfeited		(11,300	)	$	162.90
Outstanding at December 31, 2015		11,730		$	166.10
Exercisable at December 31, 2015		11,730		$	166.10

Summary of Restricted Stock Activity

A summary of restricted stock activity for the year ended December 31, 2015 is presented below:

	Number of Restricted Shares			Weighted Average Grant Price
Outstanding at January 1, 2015		241,505		$	99.55
Granted		202,074		$	26.70
Vested		(115,349	)	$	111.15
Forfeitures		(14,170	)	$	74.25
Outstanding at December 31, 2015		314,060		$	49.55

Summary of PSU Activity

A summary of PSU activity for the year ended December 31, 2015 is presented below:

	Number of PSUs			Weighted Average Grant Price
Outstanding at January 1, 2015		74,614		$	99.40
Granted		94,250		$	7.30
Unearned or forfeited		(34,943	)	$	96.35
Outstanding at December 31, 2015		133,921		$	35.35