CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY (USD $) In Thousands, unless otherwise specified	Total	Common Stock	Series E Special Stock	Treasury Stock	Additional Paid-In Capital	Accumulated Other Comprehensive Income (Loss) ("OCI")	Retained Earnings	Noncontrolling Interests	Comprehensive Income
Balances at Jun. 30, 2011	$ 214,592	$ 6,149	$ 12	$ (634,268)	$ 442,713	$ (3,064)	$ 401,363	$ 1,687
Balances (in shares) at Jun. 30, 2011		61,541
Increase (Decrease) in Stockholders' Equity
Net income (loss)	44,693						44,660	33	44,693
Foreign currency translation adjustment	(3,184)					(3,184)			(3,184)
Unrealized loss on derivative financial instruments, net of tax	(5,418)					(5,418)			(5,418)
Total comprehensive income	36,091								36,091
Distributions to noncontrolling interests	(88)							(88)
Cumulative effect of adoption of ASU 2010-16 (ASU 2010-16)	2,384						2,384
Issuance and receipt of restricted stock, ESPP shares, stock options and related tax and tax benefit	3,877	37		(831)	4,671
Issuance and receipt of restricted stock, ESPP shares, stock options and related tax and tax benefit (in shares)		384
Purchase of common stock for treasury	(40,931)			(40,931)
Share-based compensation	7,282				7,282
Balances at Dec. 31, 2011	223,207	6,186	12	(676,030)	454,666	(11,666)	448,407	1,632
Balances (in shares) at Dec. 31, 2011		61,925
Balances at Jun. 30, 2012	197,475	6,309	12	(790,633)	489,002	(13,477)	504,895	1,367
Balances (in shares) at Jun. 30, 2012		63,150
Increase (Decrease) in Stockholders' Equity
Net income (loss)	64,022						65,658	(1,636)	64,022
Foreign currency translation adjustment	892					892			892
Unrealized loss on derivative financial instruments, net of tax	496					496			496
Total comprehensive income	65,410								65,410
Distributions to noncontrolling interests	(22)							(22)
Issuance and receipt of restricted stock, ESPP shares, stock options and related tax and tax benefit	18,461	133		(8,712)	27,040
Issuance and receipt of restricted stock, ESPP shares, stock options and related tax and tax benefit (in shares)		1,341
Purchase of common stock for treasury	(91,323)			(91,323)
Share-based compensation	6,157				6,157
Balances at Dec. 31, 2012	$ 196,158	$ 6,442	$ 12	$ (890,668)	$ 522,199	$ (12,089)	$ 570,553	$ (291)
Balances (in shares) at Dec. 31, 2012		64,491