Long-Term Debt and Capital Lease Obligations (Tables)

12 Months Ended

Dec. 31, 2012

Components of Long-Term Debt and Capital Lease Obligations

	December 31,
	2012		2011
7 3/4% senior notes due 2016 (a)		—		220,555
6 3/4% senior notes due 2020		400,000		400,000
6.0% senior notes due 2022		300,000		—
3 3/4% convertible senior subordinated notes due 2012 (b)		—		146,867
Notes payable to former shareholders of acquired businesses		23,000		29,445
Total debt		723,000		796,867
Less current portion		6,000		153,312
Long-term debt, net of current portion		717,000		643,555
Total capital lease obligations		45		94
Less current portion		21		70
Capital lease obligations, net of current portion		24		24
Long-term debt and capital lease obligations, net of current portion	$	717,024	$	643,579

^(a) Balance at December 31, 2011 includes $215.0 million principal amount of our 2016 Notes plus unamortized deferred gain of $5.6 million.

^(b) Balance at December 31, 2011 includes $149.9 million principal amount of Convertible Notes net of discount of $3.1 million.

Schedule Of Liability And Equity Components Of Convertible Notes

The following table summarizes the liability and equity components of our Convertible Notes at December 31, 2011:

	December 31, 2011
Liability component:
Principal	$	149,940
Unamortized discount		(3,073	)
Balance of 3  3/4% convertible notes due 2012	$	146,867
Equity component (recorded in additional paid-in capital)	$	18,019

Schedule Of Interest Cost On Convertible Notes

The discount on the liability component was amortized over the remaining term of the Convertible Notes through July 15, 2012 using the effective interest method. The effective interest rate on the Convertible Notes is 7  ⁵/₈%. The components of interest cost on the Convertible Notes for the years ended December 31, 2012 and 2011 were as follows:

	Year Ended December 31,
	2012		2011
Contractual interest	$	3,038	$	5,623
Amortization of debt discount		3,073		5,352
Amortization of deferred note issue costs		251		641
Total interest expense	$	6,362	$	11,616

Schedule Of Maturities Of Long-Term Debt

For years subsequent to December 31, 2012, scheduled annual maturities of long-term debt outstanding at December 31, 2012 are as follows:

	Long-term Debt		Capital Lease Obligations		Total
2013	$	6,000	$	21	$	6,021
2014		6,000		24		6,024
2015		11,000		—		11,000
2016		—		—		—
2017		—		—		—
Thereafter		700,000		—		700,000
	$	723,000	$	45	$	723,045

6.0% Senior Notes Due 2022

Schedule Of Redemption Price Percentage

The 2022 Notes are subject to redemption at our option, in whole or in part, at any time after November 15, 2017, upon not less than 30 nor more than 60 days prior notice at the following redemption prices (expressed as percentages of the principal amount to be redeemed) set forth below, plus accrued and unpaid interest, if any, to, but excluding, the redemption date.

Year	Redemption Price
2017		103.000	%
2018		102.000	%
2019		101.000	%
2020 and thereafter		100.000	%

6 3/4 % Senior Notes Due 2020

Schedule Of Redemption Price Percentage

The 2020 Notes are subject to redemption at our option, in whole or in part, at any time after October 1, 2015, upon not less than 30 nor more than 60 days’ prior notice at the following redemption prices (expressed as percentages of the principal amount to be redeemed) set forth below, plus accrued and unpaid interest, if any, to, but excluding, the redemption date:

Year	Redemption Price
2015		103.375	%
2016		102.250	%
2017		101.125	%
2018 and thereafter		100.000	%

7 3/4 % Senior Notes Due 2016

Schedule Of Redemption Price Percentage

We had the option to redeem some or all of these notes at the redemption prices (expressed as percentages of the principal amount) set forth below plus accrued and unpaid interest on the notes redeemed to the applicable redemption date, if redeemed during the twelve month period beginning on October 1, of the years indicated below, subject to the rights of holders of notes on the relevant record date to receive interest, if any, to, but excluding, the relevant interest payment date:

Year	Percentage
2011		103.875	%
2012		102.583	%
2013		101.292	%
2014 and thereafter		100.000	%