Stockholders' Equity (Details) - USD ($) shares in Thousands, $ in Thousands		3 Months Ended	4 Months Ended	7 Months Ended	8 Months Ended	12 Months Ended
	Nov. 01, 2013	Feb. 13, 2015	Jun. 30, 2014	Dec. 31, 2014	Dec. 01, 2013	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2013	Nov. 06, 2014	Jun. 03, 2014	Mar. 11, 2014	Mar. 22, 2013
Class of Stock [Line Items]
Payments for repurchase of common stock						$ 9,850	$ 46,171	$ 7,123
Common Stock
Class of Stock [Line Items]
Common stock issued (in shares)						2,600	5,200	7,300
Restricted common stock to employees (in shares)						1,300	200	2,600
Restricted Stock
Class of Stock [Line Items]
Shares canceled or surrendered as payment of tax withholding (shares)						900
Common Stock
Class of Stock [Line Items]
Common stock issued (in shares)						2,630	5,185	7,270
Restricted common stock to employees (in shares)						1,325	225	2,616
Shares canceled or surrendered as payment of tax withholding (shares)						904	686
Stock repurchased during period (in shares)						7,553	19,639	2,972
Common Stock | Tender Offer
Class of Stock [Line Items]
Stock repurchased during period (in shares)	16,300
Payments for repurchase of common stock	$ 40,000
Transaction costs associated with repurchase of common stock	$ 300
Common Stock | Pre-Arranged Stock Repurchase Plan
Class of Stock [Line Items]
Repurchase common stock amount authorized									$ 7,000	$ 4,000	$ 3,000	$ 5,000
Stock repurchased during period (in shares)		4,500	2,200	3,000	2,100
Payments for repurchase of common stock		$ 5,900	$ 3,000	$ 4,000	$ 5,000
Remaining authorized amount of common stock repurchase program						$ 1,100