XML 46 R43.htm IDEA: XBRL DOCUMENT v2.4.0.8

Stock-Based Awards (Tables)

12 Months Ended

Jul. 26, 2014

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

Schedule of Stock-based Compensation Expense and Related Tax Benefit Recognized

Stock-based compensation expense and the related tax benefit recognized related to stock options and restricted share units during fiscal 2014, 2013 and 2012 are as follows:

	Fiscal Year Ended
	2014				2013				2012
	(Dollars in thousands)
Stock-based compensation	$	12,596			$	9,902			$	6,952
Tax benefit recognized in the statement of operations	$	4,819			$	3,782			$	2,412

Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions

The following table summarizes the valuation of stock options and restricted share units granted during fiscal 2014, 2013 and 2012 and the significant valuation assumptions:

	Fiscal Year Ended
	2014				2013				2012
Weighted average fair value of RSUs granted	$	27.54			$	18.52			$	19.49
Weighted average fair value of Performance RSUs granted	$	27.66			$	18.08			$	19.47
Weighted average fair value of stock options granted	$	17.43			$	11.66			$	12.51
Stock option assumptions:
Risk-free interest rate	2.7		%		1.6		%		1.8		%
Expected life (years)	8.8				9.3				9.4
Expected volatility	55.1		%		55.4		%		56.1		%
Expected dividends	—				—				—

Schedule of Share-based Compensation, Stock Options Award Activity

The following table summarizes stock option award activity during fiscal 2014:

	Stock Options
	Shares			Weighted Average Exercise Price				Weighted Average Remaining Contractual Life		Aggregate Intrinsic Value
								(In years)		(In thousands)
Outstanding as of July 27, 2013	2,769,132			$	18.27
Granted	89,956			$	27.50
Options exercised	(803,796	)		$	18.12
Forfeited or canceled	(10,399	)		$	27.00
Outstanding as of July 26, 2014	2,044,893			$	18.68			4.8		$	23,545
Exercisable options as of July 26, 2014	1,575,300			$	18.81			3.9		$	18,566

Schedule of Share-based Compensation, RSU and Performance RSU Activity

The following table summarizes RSU and Performance RSU activity during fiscal 2014:

	Restricted Stock
	RSUs											Performance RSUs
	Share Units			Weighted Average Grant Price				Aggregate Intrinsic Value				Share Units			Weighted Average Grant Price				Aggregate Intrinsic Value
								(In thousands)											(In thousands)
Outstanding as of July 27, 2013	463,318			$	17.78							1,315,138			$	18.44
Granted	101,615			$	27.54							429,485			$	27.66
Share units vested	(158,441	)		$	16.53							(265,025	)		$	18.35
Forfeited or canceled	(7,561	)		$	19.27							(289,414	)		$	18.64
Outstanding as of July 26, 2014	398,931			$	20.61			$	11,509			1,190,184			$	21.73			$	34,337

X

- Definition

Schedule of Stock Based Compensation Expense and Related Tax

+ References

No definition available.

+ Details

Name:	dy_ScheduleOfStockBasedCompensationExpenseAndRelatedTaxTableTextBlock
Namespace Prefix:	dy_
Data Type:	nonnum:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- Details

Name:	us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Disclosure of the number and weighted-average grant date fair value for restricted stock and restricted stock units that were outstanding at the beginning and end of the year, and the number of restricted stock and restricted stock units that were granted, vested, or forfeited during the year.

+ References

No definition available.

+ Details

Name:	us-gaap_ScheduleOfSharebasedCompensationRestrictedStockAndRestrictedStockUnitsActivityTableTextBlock
Namespace Prefix:	us-gaap_
Data Type:	nonnum:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Tabular disclosure of the number and weighted-average exercise prices (or conversion ratios) for share options (or share units) that were outstanding at the beginning and end of the year, vested and expected to vest, exercisable or convertible at the end of the year, and the number of share options or share units that were granted, exercised or converted, forfeited, and expired during the year.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (c)(1)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

+ Details

Name:	us-gaap_ScheduleOfShareBasedCompensationStockOptionsActivityTableTextBlock
Namespace Prefix:	us-gaap_
Data Type:	nonnum:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Tabular disclosure of the significant assumptions used during the year to estimate the fair value of stock options, including, but not limited to: (a) expected term of share options and similar instruments, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (f)(2)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

+ Details

Name:	us-gaap_ScheduleOfShareBasedPaymentAwardStockOptionsValuationAssumptionsTableTextBlock
Namespace Prefix:	us-gaap_
Data Type:	nonnum:textBlockItemType
Balance Type:	na
Period Type:	duration