On June 30, 2021, the Company had stock options, stock awards and stock appreciation rights (SARs) outstanding under its 2011 Incentive Compensation Plan. SARs granted prior to 2015 are cash-settled, and SARs granted in 2015 and later are stock-settled. Stock options and SARs granted prior to 2017 generally cliff vested after two years. Starting in 2017, stock options and

SARs have a three-year graded vesting feature, with one-third of the awards vesting each year. The Company has elected the straight-line method of expense attribution for the stock options and SARs with the graded vesting feature.

Compensation expense recorded for all stock options, stock awards and SARs was as follows:

(In thousands)
Three Months Ended June 30				Six Months Ended June 30
2021		2020		2021		2020
$	2,807	$	2,989	$	5,346	$	4,191

The increase in stock-based compensation expense for the first six months of 2021 compared to the first six months of 2020 was primarily attributable to performance awards and cash-settled SARs. The increase in performance awards compensation expense reflects management’s assessment of profitability performance targets. The increase in cash-settled SARS compensation expense reflects an increase in the market value of Company stock during the first half of 2021 versus a decrease in the market value of Company stock during the first half of 2020.

Unrecognized compensation costs for stock options, stock awards and SARs were as follows:

(In thousands)	June 30, 2021		December 31, 2020
Stock options	$	3,255	$	1,993
Stock awards		7,995		5,313
SARs		7,055		4,341

The increases in unrecognized compensation costs for stock options, stock awards and SARs reflected the 2021 grants of:

	Shares
Stock options		66,134
Stock awards (at target)		41,228
SARs		142,451

The unrecognized compensation costs at June 30, 2021, are expected to be recognized over weighted-average periods of 2.0 years for stock options, SARs and stock awards.