Incentive Award Plan and Employee Stock Purchase Plan (Details) (USD $) In Millions, except Share data, unless otherwise specified	0 Months Ended		0 Months Ended
	Mar. 31, 2014 2010 Employee Stock Purchase Plan (ESPP)	Mar. 26, 2014 Chief Executive Officer Performance Based Award	Mar. 26, 2014 Other Executive Officers Performance Based Award	Mar. 26, 2014 Apex employees [Domain] Performance Based Award installment	Jan. 02, 2014 Tranche A [Member] Chief Executive Officer Performance Based Award	Mar. 26, 2014 Tranche B [Member] Chief Executive Officer Performance Based Award installment
Deferred Compensation Arrangement with Individual, Share-based Payments
Share-based awards, grant date fair market value		$ 0.5	$ 1.0	$ 2.2	$ 0.8	$ 3.3
Share-based awards, grants in period			27,141	60,244	23,255	91,569
Share-based awards, number of equal vesting components				12		3
Employee stock purchase plan shares issued during period	90,837